Spectrometers - Find The Needlepdfs.findtheneedle.co.uk/6475-Spectrometers.pdf · spectrometers, enabling fast ... intensity in the UV-, VIS-, ... Introduction Fiber Optic Spectroscopy

Spectrometers

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Devices (CCD) Arrays and Photo Diode (PD) Arrays, enabled the production of low cost scanners, CCD cameras etc. The same CCD and PDA detectors are now used in the Avantes line of spectrometers, enabling fast scanning of the spectrum, wit-hout the need of a moving grating.

Thanks to the need for fiber optics in the communication technology, low absorption silica fibers have been developed. Similar fibers can be used as measurement fibers to transport light from the sample to the optical bench of the spectrome-ter. The easy coupling of fibers allows a modular build-up of a system that consists of light source, sampling accessories and fiber optic spectrometer.

Advantages of fiber optic spectroscopy are the modularity and flexibility of the system. The speed of measurement allows in-line analysis, and the use of low-cost commonly used detectors enable a complete low cost Avantes spectrometer system.

Optical spectroscopy is a technique for measuring light intensity in the UV-, VIS-, NIR- and IR-region. Spectroscopic measurements are being used in many different applications, such as color measurement, concentration determination of chemical components or electromagnetic radiation analysis. For more elaborate application information and setups, please see further the Application chapter at the end of this catalog.

A spectroscopic instrument generally consists of entrance slit, collimator, a dispersive element, such as a grating or prism, focusing optics and detector. In a monochromator system there is normally also an exit slit, and only a narrow portion of the spectrum is projected on a one-element detector. In monochromators the entrance and exit slits are in a fixed position and can be changed in width. Rotating the grating scans the spectrum.

Development of micro-electronics during the 90’s in the field of multi-element optical detectors, such as Charged Coupled

The heart of the AvaSpec fiber optic spectrometer is an optical bench with 45, 50 or 75 mm focal length, developed in a sym-metrical Czerny-Turner design (figure 1).

Light enters the optical bench through a standard SMA905 connector and is collimated by a spherical mirror. A plane grating diffracts the collimated light; a second spherical mirror focuses the resulting diffracted light. An image of the spectrum is projected onto a 1-dimensional linear detector array.

Optical Bench Design

The optical bench has a number of components installed inside, allowing a wide variety of different configurations, depending on the intended application. The choice of these components such as the diffraction grating, entrance slit, order sorting filter, and detector coating have a strong influence on system specifications. Sensitivity, resolution, bandwidth and stray light are further discussed in the following paragraphs.

Introduction Fiber Optic Spectroscopy

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Figure 1 Optical bench design

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Biomedical Technology

Chemistry

Colorimetry

Food Technology

Inline Process Control

Radiometry

Thinfilm Analysis

How to configure a spectrometer for your application?

For optimal UV sensitivity we recommend the back-thinned UV sensitive CCD detector, as implemented in the AvaSpec-2048x14.

For the different detector types the photometric sensitivity is given in table 4, the spectral sensitivity for each detector is depicted in figure 5.

b. Chemometric Sensitivity To detect two absorbance values, close to each other with

maximum sensitivity you need a high Signal to Noise (S/N) performance. The detector with best S/N performance is the 2048x14 pixel back-thinned CCD detector, next to the 256/1024 CMOS detector in the AvaSpec-256/1024. The S/N performance can also be enhanced by averaging over multiple spectra.

4. Timing and Speed The data capture process is inherently fast with detector arrays

and no moving parts. However there is an optimal detector for each application. For fast response applications, we recommend to use the AvaSpec- USB2 platform spectrometers. When datatransfer time is critical we recommend to select a small amount of pixels to be transferred with the UBS2 interface. Data transfer time can be enhanced by selecting the pixel range of interest to be transmitted to the PC; in general the AvaSpec-128 may be considered as the fastest spectrometer with more than 8000 scans per second.

The above parameters are the most important in choosing the right spectrometer configuration, please contact our application engi-neers to optimize and fine-tune the system to your needs. On the next page you will find a quick reference table 1 for most common applications, for a more elaborate explanation and configurations, please refer to the applications section in the back of this catalog. In addition we have introduced in this catalog application icons, that will help you to find the right products and accessories for your applications.

In the modular AvaSpec design a number of choices have to be made on several optical components and options, depending on the application you want to use the spectrometer for.This section should give you some guidance on how to choose the right grating, slit, detector and other options, installed in the AvaSpec.

1. Wavelength Range In the determination for the optimal configuration of

a spectrometer system the wavelength range is the first important parameter that defines the grating choice. If you are looking for a wide wavelength range, we recommend to take an A-type (300 lines/mm) or B-type (600 lines/mm) grating (see Grating selection table in the spectrometer product section). The other important component is the detector choice, Avantes offers 9 different detector types with each different sensitivity curves (see figure 5). For UV applications the new 2048x14 pixel back-thinned CCD detector, the 256/1024 pixel CMOS detectors or DUV- enhanced 2048 or 3648 pixel CCD detectors may be selected. For the NIR range 3 different InGaAs detectors are available.

If you want to combine a wide range with a high resolu-tion, a multiple channel spectrometer may be the best choice.

2. Optical Resolution If you desire a high optical resolution we recommend to

pick a grating that has 1200 or more lines/mm (C,D,E or F types) in combination with a narrow slit and a detector with 2048 or 3648 pixels, for example 10 µm slit for the best resolution on the AvaSpec-2048 (see Resolution table in the spectrometer product section)

3. Sensitivity Talking about sensitivity, it is very important to distinguish

between photometric sensitivity (How much light do I need for a detectable signal?) and chemometric sensitivity (What absorbance difference level can still be detected?)

a. Photometric Sensitivity In order to achieve the most sensitive spectrometer

in for example Fluorescence or Raman applications we recommend the 2048 pixel CCD detector, as in the AvaSpec-2048. Further we recommend the use of a DCL-UV/VIS detector collection lens, a relatively wide slit (100µm or wider) or no slit and an A type grating. For an A-type grating (300 lines/mm) the light dispersion is minimal, so it has the highest sensitivity of the grating types. Optionally the Thermo-electric cooling of the CCD detector (see product section AvaSpec-2048-TEC, page 30) may be chosen to minimize noise and increase dynamic range at long integration times (60 seconds).

Table 1 Quick reference guide for spectrometer configuration

Application AvaSpec- Grating WL range (nm) Coating Slit FWHM DCL OSF OSC type Resolution (nm)

Biomedical 2048 NB 500-1000 - 50 1.2 - 475 -

Chemometry 1024 UA 200-1100 - 50 2.0 - - OSC-UA

128 VA 360-780 - 100 6.4 X/- - -

Color 256 VA 360-780 - 50 3.2 - - -

2048 BB 360-780 - 200 4.1 X/- - -

Fluorescence 2048 VA 350-1100 - 200 8.0 X - OSC

Fruit-sugar 128 IA 800-1100 - 50 5.4 X 600 -

Gemology 2048 VA 350-1100 - 25 1.4 X - OSC

High 2048 VD 600-700 - 10 0.07 - 550 -

resolution 3648 VD 600-700 - 10 0.05 - 550 -

High UV- 2048x14 UC 200-450 - 200 2.0 - - -

Sensitivity

Irradiance 2048 UA 200-1100 DUV 50 2.8 X/- - OSC-UA

Laserdiode 2048 NC 700-800 - 10 0.1 - 600 -

LED 2048 VA 350-1100 - 25 1.4 X/- - OSC

LIBS 2048FT UE 200-300 DUV 10 0.09 - - -

2048USB2 UE 200-300 DUV 10 0.09 - - -

Raman 2048TEC NC 780-930 - 25 0.2 X 600 -

Thin Films 2048 UA 200-1100 DUV - 4.1 X - OSC-UA

UV/VIS/NIR 2048 UA 200-1100 DUV 25 1.4 X/- - OSC-UA

2048x14 UA 200-1100 - 25 1.4 - - OSC-UA

NIR NIR256-1.7 NIRA 900-1750 - 50 5.0 - 1000 -

NIR256-2.2 NIRZ 1200-2200 - 50 10.0 - 1000 -

NIR256-2.5 NIRY 1000-2500 - 50 15.0 - 1000 -

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A diffraction grating is an optical element that separates incident polychromatic radiation into its constituent wave-lengths. A grating consists of series of equally spaced parallel grooves formed in a reflective coating deposited on a suitable substrate.

The way in which the grooves are formed separates gratings in two types, holographic and ruled. The ruled gratings are physically formed into a reflective surface with a diamond on a ruling machine. Gratings produced from laser constructed interference patterns and a photolithographic process are known as holographic gratings. In the Avaspec Spectrometers both ruled and holographic gratings are used.

The fiber optic spectrometer comes with a permanently installed grating that must be specified by the user. Further the user needs to indicate what wavelength range needs to reach the detector. Sometimes the specified usable range of a grating is larger than the range that can be projected on the detector. In order to cover a broader range, a dual or triple beam spectrometer can be chosen. Then master and slave(s) have different gratings. Similarly, a higher resolution over a wide range can be achieved by using a dual or triple spectrometer.

For each spectrometer type, a grating selection table is shown in the Spectrometer Platforms section. Table 2 illustrates how to read the grating selection table. The spectral range to select in Table 2 depends on the starting wavelength of the grating and the number of lines/mm; the higher the wavelength, the bigger the dispersion and the smaller the range to select. In Figure 2 their efficiency curves are shown.

When looking at the grating efficiency curves, please realize that the total system efficiency will be a combination of fiber transmission, grating and mirror efficiency, detector and coa-tings sensitivities. In Figure 3 the grating dispersion curves are shown for the AvaSpec-2048.

How to choose the right Grating?

Table 2 Example of spectral range and gratings

Please select Spectral range band-width from the useable Wavelength range, for example: grating UE (200-315nm) *the spectral range depends on the starting wavelength of the grating; the higher the wave-length, the smaller the range. For example grating UE (510-580 nm)

The order code is defined by 2 letters: the first is the Blaze (U= 250/300nm or UV for holo-graphic, B=400nm, V=500nm or VIS for holo-graphic, N=750nm, I=1000nm) and the second the nr of lines/mm (Z=150, A=300, B=600, C=1200, D=1800, E=2400, F=3600 lines/mm)

Different diffraction gratings

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Figure 2 Grating Efficiency Curves

300 Lines/mm Gratings 600 Lines/mm Gratings



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Figure 3 Grating Dispersion Curves




UF


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The optical resolution is defined as the minimum difference in wavelength that can be separated by the spectrometer. For separation of two spectral lines it is necessary to image them at least 2 array-pixels apart. Because the grating determines how far different wavelengths are separated (dispersed) at the detector array, it is an important variable for the resolution.The other important parameter is the width of the light beam entering the spectrometer. This is basically the instal-led fixed entrance slit in the spectrometer, or the fiber core diameter when no slit is installed. The slits can be installed with following dimensions: 10, 25 or 50 x 1000 µm high or 100, 200 or 500 µm x 2000 µm high. Its image on the detector array for a given wavelength will cover a number of pixels. For two spectral lines to be separated, it is now necessary that they be dispersed over at least this image size plus one pixel. When large core fibers are used the resoluti-on can be improved by a slit of smaller size than the fiber core. This effectively reduces the width of the entering light beam.

The influence of the chosen grating and the effective width of the light beam (fiber core or entrance slit) are shown in the tables at the product information. In Table 3 the typical reso-lution can be found for the AvaSpec-2048. Please note that for the higher lines/mm gratings the pixel dispersion varies along the wavelength range and gets better towards the lon-ger wavelengths (see also Figure 3). The best resolution can always be found for the longest wavelengths. The resolution in this table is defined as F(ull) W(idth) H(alf) M(aximum), which is defined as the width in nm of the peak at 50% of the maximum intensity (see Figure 4). Graphs with information about the pixel dispersion can be found in the gratings section as well, so you can optimally determine the right grating and resolution for your specific application.

In combination with a DCL-detector collection lens or thick fibers the actual FWHM value can be 10-20% higher than the value in the table. For best resolution small fibers and no DCL is recommended.

Figure 4 Full Width Half Maximum

How to select optimal Optical Resolution?

Slit size (µm)

Grating (lines/mm) 10 25 50 100 200 500

300 0.8 1.4 2.4 4.3 8.0 20.0

600 0.4 0.7 1.2 2.1 4.1 10.0

1200 0.1-0.2* 0.2-0.3* 0.4-0.6* 0.7-1.0* 1.4-2.0* 3.3-4.8*

1800 0.07-0.12* 0.12-0.21* 0.2-0.36* 0.4-0.7* 0.7-1.4* 1.7-3.3*

2400 0.05-0.09* 0.08-0.15* 0.14-0.25* 0.3-0.5* 0.5-0.9* 1.2-2.2*

3600 0.04-0.06* 0.07-0.10* 0.11-0.16* 0.2-0.3* 0.4-0.6* 0.9-1.4*

* dependsonthestartingwavelengthofthegrating;thehigherthewavelength,thebiggerthedispersionandthebettertheresolution

Table 3 Resolution (FWHM in nm) for the AvaSpec-2048

Installed Slit in SMA Adapter

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The AvaSpec spectrometers can be equipped with several types of detector arrays. Presently we offer silicon-based CCD, back-thinned CCD, CMOS and Photo Diode Arrays for the 200-1100 nm range. A complete overview is given in the next sec-tion “Sensitivity” in table 4. For the NIR range (1000-2500nm) InGaAs arrays are implemented.

CCD Detectors (AvaSpec-2048/3648)The Charged Coupled Device (CCD) detector stores the charge, dissipated as photons strike the photoactive surface. At the end of a controlled time-interval (integration time), the remaining charge is transferred to a buffer and then this signal is being transferred to the AD converter. CCD detectors are naturally integrating and therefore have an enormous dynamic range, only limited by the dark (thermal) current and the speed of the AD converter. The 3648 pixel CCD has an integrated electronic shutter function, so an integration time of 10µsec can be achieved.+ Advantages for the CCD detector are many pixels (2048 or 3648), high sensitivity and high speed.- Main disadvantage is the lower S/N ratio.

UV enhancement For applications below 350 nm with the AvaSpec-2048/3648 a special DUV-detector coating is required. The uncoated CCD-response below 350 nm is very poor; the DUV lumo-gen coating enhances the detector response in the region 150-350nm. The DUV coating has a very fast decay time, typ. in ns range and is therefore useful for fast trigger LIBS applications.

Back-thinned CCD Detectors (AvaSpec-2048x14)For applications requiring high quantum efficiency in the UV (200-350nm) and NIR (900-1160nm) range, combined with good S/N and a wide dynamic range, the new back-thinned CCD detector may be the right choice. The detector is an area detector of 2048x14 pixels, for which the vertical 14 pixels are binned (electronically added together) to have more sensiti-vity and a better S/N performance. + Advantage of the back-thinned CCD detector is the good UV

and NIR sensitivity, combined with good S/N and dynamic range

- Disadvantage is the relative high cost

Photo Diode Arrays (AvaSpec-128)A silicon photodiode array consists of a linear array of mul-tiple photo diode elements, for the AvaSpec-128 this is 128 pixels. Each pixel consists of a P/N junction with a positively doped P region and a negatively doped N region. When light enters the photodiode, electrons will become excited and output an electrical signal. Most photodiode arrays have an

Detector Arrays

integrated signal processing circuit with readout/integration amplifier on the same chip.+ Advantages for the Photodiode detector are high NIR sensitivity and high speed.- Disadvantages are limited amount of pixels and no UV response.

CMOS linear image sensors (AvaSpec-256/1024)These so called CMOS linear image sensors have a lower charge to voltage conversion efficiency than CCD array sensors and are therefore less light sensitive, but have a much better signal to noise ratio.The CMOS detectors have a higher conversion gain than NMOS detectors and also have a clamp circuit added to the internal readout circuit to suppress noise to a low level.+ Advantages for the CMOS detectors are good S/N ratio and good UV sensitivity.- Disadvantages are the low readout speed, low sensitivity, and relative high cost (1024 pixels).

InGaAs linear image sensors (AvaSpec-NIR256)The InGaAs linear image sensors deliver high sensitivity in the NIR wavelength range. The detector consists of a charge ampli-fier array with CMOS transistors, a shift register and timing generator. 3 versions of detectors are available:• 256 pixel non-cooled InGaAs detector for the 900-1750nm

useable range• 256 pixel 2-stage cooled Extended InGaAs detector for the

1000-2200nm range • 256 pixel 2-stage cooled Extended InGaAs detector for the

1000-2500nm range

Different Detector Arrays

Sensitivity

The sensitivity of a detector pixel at a certain wavelength is defined as the detector electrical output per unit of radia-tion energy (photons) incident to that pixel. With a given A/D converter this can be expressed as the number of counts per mJ of incident radiation.The relation between light energy entering the optical bench and the amount hitting a single detector pixel depends on the optical bench configuration. The efficiency curve of the grating used, the size of the input fiber or slit, the mirror performance and the use of a Detector Collection Lens are the main parameters. With a given set-up it is possible to do measurements over about 6-7 decades of irradiance levels. Some standard detector specifications can be found in Table 4 detector specifications. Optionally a cylindrical Detector Collection Lens (DCL) can be mounted directly on the detec-tor array. The quartz lens (DCL-UV for AvaSpec-2048/3648)

will increase the system sensitivity by a factor of 3-5, depen-ding on the fiber diameter used.

In Table 4 the overall sensitivity is given for the detector types currently used in the UV/VIS AvaSpec spectrometers as output in counts per ms integration time for a 16-bit AD converter. To compare the different detector arrays we have assumed an optical bench with 600 lines/mm grating and no DCL. The entrance of the bench is an 8 µm core diameter fiber, con-nected to a standard AvaLight-HAL halogen light source. This is equivalent to ca. 1 µWatt light energy input.

In table 5 the specification is given for the NIR spectrometers, in figure 5 and figure 6 the spectral response curve for the dif-ferent detector types are depicted.


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Table 4 Detector specifications (based on a 16-bit AD converter)

Detector TAOS 128 HAM256 HAM1024 SONY2048 TOSHIBA3648 HAM2048x14

Type Photo diode array CMOS linear array CMOS linear array CCD linear array CCD linear array Back-thinned CCD Array

# Pixels, pitch 128, 63.5 µm 256, 25 µm 1024, 25 µm 2048, 14 µm 3648, 8 µm 2048x14, 14 µm

pixel width x 55.5 x 63.5 25 x 500 25 x 500 14 x 56 8 x 200 14x14 (total height (µm) height 196 µm)

pixel well depth 250,000 4,000,000 4,000,000 40,000 120,000 250,000(electrons)

Sensitivity 100 22 22 240 160 200V/lx.s

Sensitivity 100 440 440 40 60 50 Photons/count@600nm

Sensitivity 4000 120 120 20,000 14,000 16,000 (AvaLight-HAL, (AvaSpec-128) (AvaSpec-256) (AvaSpec-1024) (AvaSpec-2048) (AvaSpec-3648) (Avaspec 2048x14)8 µm fiber) in counts/µW per ms integration time

Peak wavelength 750 nm 500 nm 500 nm 500 nm 550 nm 650 nm

Signal/Noise 500:1 2000 :1 2000 :1 200 :1 350 :1 500:1

Dark noise 60 28 60 35 35 50(counts RMS)

Dynamic Range 1000 2500 2500 2000 2000 1300

PRNU** ± 4% ± 3% ±3% ± 5% ± 5% ± 3%

Wavelength range 360-1100 200-1000 200-1000 200*-1100 200*-1100 200-1160(nm)

Frequency 2 MHz 500 kHz 500 kHz 2 MHz 1 MHz 1.5 MHz

*DUVcoated**PhotoResponseNon-Uniformity=maxdifferencebetweenoutputofpixelswhenuniformlyilluminated,dividedbyaveragesignal

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Figure 5 Detector Spectral sensitivity curves

Table 5 NIR Detector Specifications

Detector NIR256-1.7 NIR256-2.2 NIR256-2.5

Type Linear InGaAs array Linear InGaAs array Linear InGaAs array with 2 stage TE cooling with 2 stage TE cooling

# Pixels, pitch 256, 50 µm 256, 50 µm 256, 50 µm

pixel width x 50 x 500 50 x 500 50 x 500height (µm)

Pixel well depth 16,000,000 1,500,000 1,500,000(electrons)

Sensitivity 350 250 200 (AvaLight-HAL, 8 µm fiber) in counts/µW per ms integration time

Peak wavelength 1550 nm 2000 nm 2300 nm

Signal/Noise 4000:1 1200 :1 1200 :1

Dark noise 12 40 40 (counts RMS)

Dynamic Range 5000 1600 1600

PRNU** ± 5% ± 5% ± 5%

Defective pixels 0 12 12(max)

Wavelength range 900-1750 1000-2200 1000-2500 (nm)

Frequency 500 kHz 500 kHz 500 kHz

**PhotoResponseNon-Uniformity=maxdifferencebetweenoutputofpixelswhenuniformlyilluminated,dividedbyaveragesignal

Figure 6 NIR Detector Sensitivity Curves


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Stray light is radiation of the wrong wavelength that activates a signal at a detector element. Sources of stray light can be: • Ambient light • Scattering light from imperfect optical components or reflections of non-optical components • Order overlap

Encasing the spectrometer in a light tight housing eliminates ambient stray light.

When working at the detection limit of the spectrometer system, the stray light level from the optical bench, grating and focusing mirrors will determine the ultimate limit of detection. Most gratings used are holographic gratings, known for their low level of stray light. Stray light measure-ments are being carried out with a laser light, shining into the optical bench and measuring light intensity at pixels far away from the laser projected beam. Other methods use a halogen light source and long pass- or band pass filters.

Typical stray light performance is <0.05 % at 600 nm; <0.10 % at 435 nm; <0.10 % at 250 nm.

Second order effects, which can play an important role for gratings with low groove frequency and therefore a wide wavelength range, are usually caused by the grating 2nd order diffracted beam. The effects of these higher orders can often be ignored, but sometimes need to be taken care of. The strategy is to limit the light to the region of the spectra, where order overlap is not possible. Second order effects can be filtered out, using a permanently installed long-pass optical filter in the SMA entrance connector or an order sor-

ting coating on a window in front of the detector. The order sorting coatings on the window typically have one long pass filter (590nm) or 2 long pass filters (350 nm and 590 nm), depending on the type and range of the selected grating.

In Table 6 a wide range of optical filters for installation in the optical bench can be found. The use of following long-pass filters is recommended: OSF-475 for grating NB and NC, OSF-515/550 for grating NB and OSF-600 for grating IB.

In addition to the order sorting coatings we implement partial DUV coatings on Sony 2048 and Toshiba 3648 detectors to avoid second order effects from UV response and to enhance sensitivity and decrease noise in the Visible range. This partial DUV coating is done automatically for the follo-wing grating types:• UA for 200-1100 nm, DUV400, only first 400 pixels coated• UB for 200-700 nm, DUV800, only first 800 pixels coated

Stray Light and Second Order Effects

Table 6 Filters installed in the AvaSpec spectrometer series

OSF-385 Permanently installed 1 mm order sorting filter @ 371 nm





OSC Order sorting coating with 590nm long pass filter for VA, BB (>350 nm) and VB gratings

in AvaSpec-1024/2048/3648/2048x14

OSC-UA Order sorting coating with 350 and 590nm longpass filter for UA gratings

in AvaSpec-1024/2048/3648/2048x14

OSC-UB Order sorting coating with 350 and 590nm longpass filter for UB or BB (<350 nm) gratings

in AvaSpec-1024/2048/3648/2048x14

Order Sorting Window in holder

Spectrometer Platforms The AvaSpec Spectrometer System comes in different plat-forms, consisting of different electronics, optical benches and detectors. This document gives an overview of the different platforms, the nomenclature and technical specifications. The AvaSpec spectrometer platform was designed to enable applications in the various fields. The concept in the R&D

Product name Electronics Optical bench Detector Housing

AvaSpec-128 AS-161 with USB AvaBench-45, all gratings 360-1100 nm TAOS 128

AvaSpec-128-USB2 AS-5216 with USB2

AvaSpec-256 AS-161 with USB AvaBench-45, all gratings 200-1100 nm HAM 256


AvaSpec-1024 AS-161 with USB AvaBench-75, all gratings 200-1100 nm HAM 1024


AvaSpec-2048 AS-161 with USB AvaBench-75, all gratings 200-1100 nm Sony 2048


AvaSpec-3648-USB2 AS-5216 with USB2 AvaBench-75, Toshiba 3648 all gratings 200-1100 nm

AvaSpec-2048x14-USB2 AS-5216 with USB2 AvaBench-75, HAM 2048x14 all gratings 200-1160 nm

AvaSpec-NIR256-1.7 AS-5216 with USB2 AvaBench-50, HAM NIR256-1.7 grating 900-1750 nm



AvaSpec-xxx-2 AS-161 with USB, 2 channels AvaBench-45/75, all TAOS 128xxx = 102/256/1024/ gratings 200-1100 nm HAM 256/1024 2048 or Sony 2048

AvaSpec Multichannel AS-161 with USB1 or AvaBench-45/75, All detectorsas Desktop AS-5216 with USB2 all gratings 200-1100 nm or Rackmount

phase was to design a platform, based on a powerfull micro-processor system, with stand-alone capability, multi-channel simultaneous readout, digital in- and outputs as well as USB and RS232 to allow easy interfacing with or without computer environment.

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Table 7 Fast selection guide


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The AvaSpec-128 Fiber Optic Spectrometer is is the replacement of the AvaSpec-102 and based on the AvaBench-45 symmetrical Czerny-Turner design with 128 pixel Photo Diode Array. The spec-trometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and diffractio-nal grating. A choice of 11 different gratings with different dis-persion and blaze angles enable applications in the 360-1100nm range. The AvaSpec-128 can be delivered with 2 platforms of electronics; either with USB1.1 with 14 bit AD converter or the new USB2.0 interface with 16 bit AD converter. Applications for this instrument are low cost color measurements. Digital IO ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.

The AvaSpec-128 is also available as dual channel or multiple channel instrument (up to 8 channels), where all spectra are taken simultaneously.The AvaSpec-128 comes with AvaSoft-basic, a complete manual, USB interface cable and a PS-12V/1.0A power supply. AvaSoft-full and application software can be ordered separately.Alternatively the AvaSpec-128-SPU has a switch to run on USB power or external power.The new AvaSpec-128-USB2 has a USB2 interface with ultrafast

datasampling of 8000 spectra per second (with on board aver-aging) and datatransfer in 1.1msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-128-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detectors can be externally coupled (see section multichannel spectrometers, page 32).

AvaSpec-128

AvaSpec-128 Fiber Optic Spectrometer

Technical Data

Spectrometer Platform AvaSpec-128 AvaSpec-128-USB2

Optical Bench Symmetrical Czerny-Turner, 45 mm focal length

Wavelength range 360-1100 nm

Resolution 1.4 –64 nm, depending on configuration (see table)

Stray light < 0.3%

Sensitivity (AvaLight-HAL, 8 µm fiber) 1000 (14-bit AD) 4000 (16-bit AD) in counts/µw -per ms integration time

Detector Photo diode array, 128 pixels

Signal/Noise 500:1

AD converter 14 bit, 1.33 MHz 16 bit, 2 MHz

Integration time 1 msec – 60 sec 0.06 msec - 10 minutes

Interface USB 1.1, 12 Mbps USB 2.0 high speed, 480 Mbps RS-232, 115.200 bps RS-232, 115.200 bps

Sample speed 3 msec 0.12 msecwith on-board averaging

Data transfer speed 6-7 ms / scan (depending on 1.1 msec / scan # pixels transferred)

Digital IO DB-15 connector, 2 Digital in, HD-26 connector, 2 Analog in, 2 Analog out, 12 Digital out 3 Digital in, 12 Digital out, trigger, sync.

Power supply 12 VDC, reverse polarity protection, Default USB power, 350 mA. 160 mA (PS-12V/1.0A) or 5VDC USB power Or with SPU2 external 12VDC, 350 mA

Dimensions, weight 175 x 110 x 44 mm(1 channel), 716 grams 175 x 110 x 44 mm(1 channel), 716 grams 175 x 165 x 85 mm (2 channels), 1700 gr.

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Resolution table (FWHM) for AvaSpec-128

Slit size (µm)

Grating (lines/mm) 50 100 200 500

150 13.0 13.0 26.0 64.0

300 6.4 6.4 13.0 32.0

600 3.0 3.0 6.0 16.0

1200 1.5 1.5 3.0 8.0

ORDERING INFORMATION

AvaSpec-128 Fiber Optic Spectrometer, 45 mm Avabench, 128 pixel PDA detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB interface cable and a PS-12V/1.0A power supply, specify grating, wavelength range and options AvaSpec-128-USB2 Fiber Optic Spectrometer, 45 mm Avabench, 128 pixel PDA detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsAvaSpec-128-2 Dual Channel Fiber Optic Spectrometer, 2* 45 mm Avabench, 128 pixel PDA detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB interface cable and a PS-12V/1.0A power supply, for both channels specify grating, wavelength range and options Options-SPU incl. switch for USB powered USB1 or external power for RS232-SPU2 incl. switch for USB powered USB2 or external power for RS232/BT-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlyDCL-VIS Detector collection lens to enhance sensitivity, PMMA, 360-1100nmSLIT-XX Slit size, please specify XX = 50, 100, 200, 500 µmOSF-YYY Order sorting filter for reduction of 2nd order effects, please specify YYY= 385, 475, 515, 550, 600 nm

Grating selection table for AvaSpec-128

Use Useable range Spectral range (nm) Lines/mm Blaze (nm) Order code

VIS/NIR 360-1100 500 300 300 UA

VIS 360-750 100 1200 250 UC

VIS 360-850 240 600 400 BB

VIS/NIR 360-1100* 740* 150 500 VZ

VIS/NIR 360-1100 500 300 500 VA

VIS 360-850 240 600 500 VB

VIS 400-980 100 1200 500 VC

NIR 500-935 240 600 750 NB

NIR 500-1000 100 1200 750 NC

NIR 600-1100 500 300 1000 IA

NIR 600-1100 200 600 1000 IB

*pleasenotethatnotall128pixelswillbeusedfortheuseablerange


Spectro

meters

The AvaSpec-256 Fiber Optic Spectrometer is based on the AvaBench-45 symmetrical Czerny-Turner design with 256 pixel CMOS Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and diffractional grating. A choice of 13 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-256 can be delivered with 2 platforms of elec-tronic; either with USB1.1 with 14 bit AD converter or the new USB2.0 interface with 16 bit AD converter.The AvaSpec-256 is especially suitable for low noise applica-tions. Digital I/O ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.The AvaSpec-256 is also available as dual channel or multiple channel instrument (up to 8 channels), where all spectra are taken simultaneously.The AvaSpec-256 comes with AvaSoft-basic, a complete manual, USB interface cable and a PS-12V/1.0A power sup-ply. AvaSoft-full and application software can be ordered separately. Alternatively the AvaSpec-256-SPU has a switch to run on USB power or external power.The new AvaSpec-USB2 has a USB2 interface with ultrafast

datasampling of 1500 spectra per second (with on board averaging) and datatransfer in 1.5msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communi-cation and an SD card for on-board saving of spectra can be added. The AvaSpec-256-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detectors can be externally coupled (see section multichan-nel spectrometers, page 32).

AvaSpec-256


Technical Data

Spectrometer platform AvaSpec-256 AvaSpec-256-USB2




Stray light < 0.2%

Sensitivity (AvaLight-HAL, 8 µm fiber) 30 (14-bit AD) 120 (16-bit AD)in counts/µW -per ms integration time

Detector CMOS linear array, 256 pixels

Signal/Noise 2000:1

AD converter 14 bit, 330 kHz 16 bit, 500 kHz

Integration time 1 msec – 60 seconds 0.6 msec – 10 minutes


Sample speed 4 msec / scan 0.6 msec /scanwith on-board averaging

Data transfer speed 7-9 ms / scan (depending on 1.5 ms / scan # pixels transferred)



Dimensions, weight 175 x 110 x 44 mm (1 channel), 716 gr. 175 x 110 x 44 mm(1 channel), 716 grams 175 x 165 x 85 mm (2 channels), 1700 gr.

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UV/VIS/NIR 200-1100* 900* 122 UV UZ

UV/VIS/NIR 200-1100 400 300 300 UA

UV/VIS 200-850 200 600 300 UB

UV 200-750 100 1200 250 UC

UV/VIS 250-850 200 600 400 BB

VIS/NIR 300-1100* 800* 150 500 VZ

VIS/NIR 300-1100 400 300 500 VA

VIS 360-1000 200 600 500 VB

VIS 300-800 100 1200 500 VC

NIR 500-1050 200 600 750 NB

NIR 500-1050 100 1200 750 NC

NIR 600-1100 400 300 1000 IA

NIR 600-1100 200 600 1000 IB

*pleasenotethatnotall256pixelswillbeusedfortheuseablerange


Slit size (µm)

Grating (lines/mm) 25 50 100 200 500

122 5.5 7.9 15.7 32.0 79.0

150 4.5 6.4 12.8 26.0 64.0

300 2.5 3.2 6.4 13.0 32.0

600 1.0 1.5 3.0 6.0 16.0

1200 0.5 0.8 1.5 3.0 8.0


AvaSpec-256 Fiber Optic Spectrometer, 45 mm Avabench, 256 pixel CMOS detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, specify grating, wavelength range and optionsAvaSpec-256-USB2 Fiber Optic Spectrometer, 45 mm Avabench, 256 CMOS detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsAvaSpec-256-2 Dual channel Fiber Optic Spectrometer, 2 * 45 mm Avabench, 256 pixel CMOS detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, for both channels specify grating, wavelength range and options Options-SPU incl. switch for USB powered USB1 or external power for RS232-SPU2 incl. switch for USB powered USB2 or external power for RS232/BT-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlySLIT-XX Slit size, please specify XX = 25, 50, 100, 200, 500 µmOSF-YYY Order sorting filter for reduction of 2nd order effects; please specify YYY= 385, 475, 515, 550, 600 nm


Spectro

meters

The AvaSpec-1024 Fiber Optic Spectrometer is based on the AvaBench-75 symmetrical Czerny-Turner design with 1024 pixel CMOS Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and diffractional grating. A choice of 16 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-1024 can be delivered with 2 platforms of elec-tronics; either with USB1.1 with 14 bit AD converter or the new USB2.0 interface with 16 bit AD converter.The AvaSpec-1024 is especially suitable for low noise applica-tions with good resolution. Digital I/O ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.The AvaSpec-1024 is also available as dual channel or multi-ple channel instrument (up to 8 channels), where all spectra are taken simultaneously.The AvaSpec-1024 comes with AvaSoft-basic, a complete manual, USB interface cable and a PS-12V/1.0A power sup-ply. AvaSoft-full and application software can be ordered separately. Alternatively the AvaSpec-1024-SPU has a switch to run on USB power or external power.The new AvaSpec1024-USB2 has a USB2 interface with

ultrafast datasampling of 450 spectra per second and data-transfer in 2.2 msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-1024-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detectors can be externally coupled (see section multichan-nel spectrometers, page 32).

AvaSpec-1024


Technical Data





Stray light < 0.1%

Sensitivity (AvaLight-HAL, 8 µm fiber) 30 (14-bit AD) 120 (16-bit AD) counts/µW -per ms integration time

Detector CMOS linear array, 1024 pixels

Signal/Noise 2000:1

AD converter 14 bit, 330 kHz 16 bit, 500 kHz








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Use Useable range Spectral range (nm) Lines/mm Blaze (nm) Order codeUV/VIS/NIR 200-1100* 900* 300 300 UAUV/VIS 200-850 450 600 300 UBUV 200-750 220 1200 250 UCUV 200-650 160 1800 UV UDUV 200-580 100 2400 UV UEUV 220-400 50 3600 UV UFUV/VIS 250-850 450 600 400 BBVIS/NIR 300-1100* 800* 300 500 VAVIS 360-1000 450 600 500 VBVIS 300-800 220 1200 500 VCVIS 350-750 160 1800 500 VDVIS 350-640 75 2400 VIS VENIR 500-1050 450 600 750 NBNIR 500-1000 200 1200 750 NCNIR 600-1100* 500* 300 1000 IANIR 600-1100 450 600 1000 IB*pleasenotethatnotall1024pixelswillbeusedfortheuseablerange



AvaSpec-1024 Fiber Optic Spectrometer, 75 mm Avabench, 1024 pixel CMOS detector, USB1.1/RS-232 interface, incl.

AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, specify grating, wavelength range and optionsAvaSpec-1024-USB2 Fiber Optic Spectrometer, 75 mm Avabench, 1024 CMOS detector, USB powered high speed USB2 interface, incl. AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsAvaSpec-1024-2 Dual channel Fiber Optic Spectrometer, 2 * 75 mm Avabench, 1024 pixel CMOS detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, for both channels specify grating, wavelength range and options Options-SPU incl. switch for USB powered USB1 or external power for RS232-SPU2 incl. switch for USB powered USB2 or external power for RS232/BT-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlySLIT-XX Slit size, please specify XX = 25, 50, 100, 200, 500 µmOSF-YYY Order sorting filter for reduction of 2nd order effects, please specify YYY= 385, 475, 515, 550, 600 nmOSC Order sorting coating with 590nm long pass filter for VA, BB (>350nm) and VB gratings in AvaSpec-1024OSC-UA Order sorting coating with 350 and 590nm longpass filter for UA gratings in AvaSpec-1024OSC-UB Order sorting coating with 350 and 590nm longpass filter for UB or BB (<350nm) gratings in AvaSpec-1024

Slit size (µm)

Grating (lines/mm) 25 50 100 200 500

300 1.2 2.4 4.3 8.0 20.0

600 0.8 1.2 2.1 4.1 10.0

1200 0.4 0.5 1.0 2.0 5.0

1800 0.3 0.4 0.8 1.4 3.5

2400 0.2 0.25 0.5 1.0 2.5

3600 0.15 0.20 0.4 0.6 1.5


Spectro

meters

The AvaSpec-2048 Fiber Optic Spectrometer is based on the AvaBench-75 symmetrical Czerny-Turner design with 2048 pixel CCD Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collima-ting and focusing mirror and diffractional grating. A choice of 16 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-2048 can be delivered with 2 platforms of electro-nics; either with USB1.1 with 14 bit AD converter or the new USB2.0 interface with 16 bit AD converter. The AvaSpec-2048 is especially suitable for low light level and high resolution applications. An optional detector coating enhances the CCD performance for the UV range and a detector collection lens offers high sensitivity. Digital I/O ports enable external trig-gering and control of shutter and pulsed light sources from the Avantes line of instruments.The AvaSpec-2048 is also available as dual channel or multi-ple channel instrument (up to 8 channels), where all spectra are taken simultaneously. The AvaSpec-2048 comes with AvaSoft-basic, a complete manual, USB interface cable and a PS-12V/1.0A power sup-ply. AvaSoft-full and application software can be ordered separately. Alternatively the AvaSpec-2048-SPU has a switch

to run on USB power or external power.The new AvaSpec2048-USB2 has a USB2 interface with ultrafast datasampling of 900 spectra per second and datatransfer in 1.8msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-2048-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detectors can be externally cou-pled (see section multichannel spectrometers, page 32).

AvaSpec-2048


Technical Data





Stray light < 0.1%

Sensitivity (AvaLight-HAL, 8 µm fiber) 5,000 (14-bit AD) 20,000 (16-bit AD) in counts/µW -per ms integration time

Detector CCD linear array, 2048 pixels

Signal/Noise 200:1

AD converter 14 bit, 1.33 MHz 16 bit, 2 MHz








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Use Useable range Spectral range (nm) Lines/mm Blaze (nm) Order codeUV/VIS/NIR 200-1100** 900** 300 300 UAUV/VIS 200-850 520 600 300 UBUV 200-750 250-220* 1200 250 UCUV 200-650 165-145* 1800 UV UDUV 200-580 115-70* 2400 UV UEUV 220-400 75-50* 3600 UV UFUV/VIS 250-850 520 600 400 BBVIS/NIR 300-1100** 800** 300 500 VAVIS 360-1000 500 600 500 VBVIS 300-800 250-200* 1200 500 VCVIS 350-750 145-100* 1800 500 VDVIS 350-640 75-50* 2400 VIS VENIR 500-1050 500 600 750 NBNIR 500-1050 220-150* 1200 750 NCNIR 600-1100** 500** 300 1000 IANIR 600-1100 500 600 1000 IB


*dependsonthestartingwavelengthofthegrating;thehigherthewavelength,thebiggerthedispersionandthesmallertherangetoselect**pleasenotethatnotall2048pixelswillbeusedfortheuseablerange


AvaSpec-2048 Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel CCD detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, specify grating, wavelength range and optionsAvaSpec-2048-USB2 Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel CCD detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsAvaSpec-2048-2 Dual channel Fiber Optic Spectrometer, 2 * 75 mm Avabench, 2048 pixel CCD detector, USB1.1/RS-232 interface, incl AvaSoft-Basic, USB cable and PS-12V/1.0A power supply, for both channels specify grating, wavelength range and options Options-SPU incl. switch for USB powered USB1 or external power for RS232-SPU2 incl. switch for USB powered USB2 or external power for RS232/BT-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlyDUV Deep UV detector coating >150 nmDCL-UV/VIS Detector Collection lens to enhance sensitivity, Quartz, 200-1100 nmSLIT-XX Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µmOSF-YYY Order sorting filter for reduction of 2nd order effects, please specify YYY= 385, 475, 515, 550, 600 nmOSC Order sorting coating with 590nm long pass filter for VA, BB (>350nm) and VB gratings in AvaSpec-2048OSC-UA Order sorting coating with 350 and 590nm longpass filter for UA gratings in AvaSpec-2048OSC-UB Order sorting coating with 350 and 590nm longpass filter for UB or BB (<350nm) gratings in AvaSpec-2048

Slit size (µm)

Grating (lines/mm) 10 25 50 100 200 500

300 0.8 1.4 2.4 4.3 8.0 20.0

600 0.4 0.7 1.2 2.1 4.1 10.0

1200 0.1-0.2* 0.2-0.3* 0.4-0.6* 0.7-1.0* 1.4-2.0* 3.3-4.8*

1800 0.07-0.12* 0.12-0.21* 0.2-0.36* 0.4-0.7* 0.7-1.4* 1.7-3.3*

2400 0.05-0.09* 0.08-0.15* 0.14-0.25* 0.3-0.5* 0.5-0.9* 1.2-2.2*

3600 0.04-0.06* 0.07-0.10* 0.11-0.16* 0.2-0.3* 0.4-0.6* 0.9-1.4*

*dependsonthestartingwavelengthofthegrating;thehigherthewavelength,thebiggerthedispersionandthebettertheresolution


Technical Data


Spectro

meters

spectra can be added. The AvaSpec-3648-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectro-meters with different detectors can be externally coupled (see section multichannel spectrometers, page 32).

AvaSpec-3648The AvaSpec-3648 Fiber Optic Spectrometers is based on the AvaBench-75 symmetrical Czerny-Turner design with 3648 pixel CCD Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collima-ting and focusing mirror and diffractional grating. A choice of 16 different gratings with different dispersion and blaze angles enable applications in the 200-1100nm range. The AvaSpec-3648 comes with a 16 bit AD converter, and USB2.0 high speed interface. The AvaSpec- 3648 is especially suitable for measuring high resolution applications and thanks to the 10µsec electronic shutter has a wide dynamic range. An optional detector coa-ting enhances the CCD performance for the UV range and a detector collection lens offers high sensitivity.Digital IO ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.The AvaSpec-3648 has a USB2 interface with fast data sampling of 270 spectra per second and data transfer in 3.7 msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board saving of




Stray light < 0.1%

Sensitivity 14,000 counts (16-bit AD)/µW -per ms integration time (AvaLight-HAL, 8 µm fiber)

Detector CCD linear array, 3648 pixels

Signal/Noise 350:1

AD converter 16 bit, 1MHz

Integration time 10 µsec – 10 minutes

Interface USB 2.0 high speed, 480 Mbps or RS-232, 115.200 bps

Sample speed 3.7 msec / scan with on-board averaging

Data transfer speed 3.7 msec / scan

Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, synchronization

Power supply Default USB power, 350 mA. Or with SPU2 external 12VDC, 350 mA

Dimensions, weight 175 x 110 x 44 mm (1 channel), 716 grams

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AvaSpec-3648-USB2 Fiber Optic Spectrometer, 75 mm Avabench, 3648 pixel CCD detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsAvaSpec-3648-SPU2 Fiber Optic Spectrometer, 75 mm Avabench, 3648 pixel CCD detector, high speed USB2 interface, incl. switch for USB powered USB2 or external power for RS232/BT, AvaSoft-Basic, USB interface cable, specify grating, wavelength range and optionsOptions-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlyDUV Deep UV detector coating >150 nmDCL-UV/VIS Detector Collection lens to enhance sensitivity, Quartz, 200-1100 nmSLIT-XX Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µmOSF-YYY Order sorting filter for 2nd order effects filtering, please specify YYY= 375, 475, 515, 550, 600 nmOSC Order sorting coating with 590nm long pass filter for VA, BB (>350nm) and VB gratings in AvaSpec-3648OSC-UA Order sorting coating with 350 and 590nm longpass filter for UA gratings in AvaSpec-3648OSC-UB Order sorting coating with 350 and 590nm longpass filter for UB or BB (<350nm) gratings in AvaSpec-3648

Slit size (µm)

Grating (lines/mm) 10 25 50 100 200 500

300 0.5 1.4 2.4 4.3 8.0 20.0

600 0.27 0.7 1.2 2.1 4.1 10.0

1200 0.07-0.13* 0.2-0.3* 0.4-0.6* 0.7-1.0* 1.4-2.0* 3.3-4.8*

1800 0.05-0.08* 0.12-0.21* 0.2-0.36* 0.4-0.7* 0.7-1.4* 1.7-3.3*

2400 0.04-0.07* 0.08-0.15* 0.14-0.25* 0.3-0.5* 0.5-0.9* 1.2-2.2*

3600 0.025-0.04* 0.07-0.10* 0.11-0.16* 0.2-0.3* 0.4-0.6* 0.9-1.4*



Technical Data

AvaSpec-2048x14 High UV-sensitivity back-thinned CCD Spectrometer

Spectro

meters

saving of spectra can be added. The AvaSpec-2048x14-USB2 runs on USB power and comes with AvaSoft-basic, a com-plete manual and USB interface cable. Multiple (up to 127) USB2 spectrometers with different detector types can be externally coupled (see section multi-channel spectrometers, page 32).

AvaSpec-2048x14The AvaSpec-2048x14 Fiber Optic Spectrometers is a back-thinned type CCD spectrometer with high quantum effi-ciency and high UV sensitivity. The optical design is based on the AvaBench-75 symmetrical Czerny-Turner design with a 2048x14 pixels high UV sensitive CCD image sensor. The image sensor is used as a linear array of 2048 pixels binning the vertical 14 pixels to optimize efficiency. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and a diffractional grating. A choice of 16 different gratings with different disper-sion and blaze angles enable applications in the 200-1160nm range. The AvaSpec-2048x14 comes with a 16 bit AD converter, and USB2.0 high speed interface. The AvaSpec-2048x14 is especially suitable for measuring low light, fluorescence and UV- applications. Digital IO ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.The new AvaSpec-2048x14 has a USB2 interface with fast data sampling of 450 spectra per second and data transfer in 2.24 msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board




Stray light < 0.1%

Sensitivity 16,000 counts (16-bit AD)/µW -per ms integration time (AvaLight-HAL, 8 µm fiber)

UV Quantum efficiency 35-65% (200-300nm)

Detector Back-thinned CCD image sensor 2048x14 pixels

Signal/Noise 500:1

AD converter 16 bit, 1.5MHz

Integration time 2.24 msec – 10 minutes

Interface USB 2.0 high speed, 480 Mbps or RS-232, 115.200 bps

Sample speed 2.24 msec / scan with on-board averaging

Data transfer speed 2.24 msec / scan


Power supply Default USB power, 350 mA. Or with SPU2 external 12VDC, 350 mA

Dimensions, weight 175 x 110 x 44 mm (1 channel), 716 grams

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Grating selection table for AvaSpec-2048x14


Resolution table (FWHM) for AvaSpec-2048x14



AvaSpec-2048x14-USB2 Fiber Optic Spectrometer, 75 mm Avabench, 2048x14 pixel back-thinned CCD detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, specify grating, wavelength range and options

AvaSpec-2048x14-SPU2 Fiber Optic Spectrometer, 75 mm Avabench, 2048x14 pixel back-thinned CCD detector, high speed USB2 interface, incl. switch for USB power or external power for RS232/BT, AvaSoft-Basic, USB interface cable, specify grating, wavelength range and options

Options-SPU2-BT Bluetooth® interface for USB2 platform only, including antenna and switchSDXXX Internal XXX MB SD card for on board data saving, for USB2 platform onlySLIT-XX Slit size, please specify XX = 10, 25, 50, 100, 200, 500 µmOSF-YYY Order sorting filter for 2nd order effects filtering, please specify YYY= 375, 475, 515, 550, 600 nmOSC Order sorting coating with 590nm long pass filter for VA, BB (>350nm) and VB gratings in AvaSpec-2048x14OSC-UA Order sorting coating with 350 and 590nm longpass filter for UA gratings in AvaSpec-2048x14OSC-UB Order sorting coating with 350 and 590nm longpass filter for UB or BB (<350nm) gratings in AvaSpec-2048x14

Slit size (µm)

Grating (lines/mm) 10 25 50 100 200 500

300 0.8 1.4 2.4 4.3 8.0 20.0

600 0.4 0.7 1.2 2.1 4.1 10.0

1200 0.1-0.2* 0.2-0.3* 0.4-0.6* 0.7-1.0* 1.4-2.0* 3.3-4.8*

1800 0.07-0.12* 0.12-0.21* 0.2-0.36* 0.4-0.7* 0.7-1.4* 1.7-3.3*

2400 0.05-0.09* 0.08-0.15* 0.14-0.25* 0.3-0.5* 0.5-0.9* 1.2-2.2*

3600 0.04-0.06* 0.07-0.10* 0.11-0.16* 0.2-0.3* 0.4-0.6* 0.9-1.4*



Spectro

meters

interface. The AvaSpec- NIR256-1.7 is especially suitable for measuring in the NIR range from 900-1750nm applications, e.g. plastics and water absorbance. The AvaSpec-NIR256-2.2/2.5 have a 2-stage Thermo-electrical Peltier-cooled InGaAs detector, specially suitable for measuring in the NIR range from 1000-2200/2500nm. Digital IO ports enable external triggering and control of shutter and pulsed light sources from the Avantes line of instruments.The new AvaSpec-NIR256 series have a USB2 interface with fast datasampling of 940 spectra per second and datatrans-fer in 1.56 msec and supports analog in-and outputs as well. Optional Bluetooth® (-BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-NIR-256-1.7 runs on USB power, the AvaSpec-NIR-256-2.2/2.5 comes in a desktop housing and runs on 100-240VAC. Both come with AvaSoft-basic, a complete manual and USB interface cable. Multiple (up to 127) USB2 spectro-meters with different detectors can be externally coupled (see section multichannel spectrometers, page 32).

AvaSpec-NIR256 Near-Infrared Fiber Optic Spectrometer

Technical Data

Spectrometer platform AvaSpec-NIR256-1.7 AvaSpec-NIR256-2.2 AvaSpec-NIR256-2.5


Wavelength range 900 - 1750nm 1000 - 2200nm 1000 - 2500nm

Resolution 6.0 - 50 nm 10.0 - 60 nm 15.0 - 90 nm

Stray light < 0.1%

Sensitivity 80 counts (16-bit AD)/µW -per ms integration time(AvaLight-HAL, 8 µm fiber)

Detector InGaAs linear array, 256 pixels InGaAs linear array with 2 stage TE-cooling, 256 pixels

Signal/Noise 4000:1 1200:1

AD converter 16 bit, 500 kHz

Integration time (min) 0.52 ms

Interface USB 2.0 high speed, 480 Mbps RS-232, 115.200 bps

Sample speed 1.06 msec /scanwith on-board averaging

Data transfer speed 1.56 msec /scan


Power supply Default USB power, External 100-240 VAC 350 mA Or with SPU2 external 12VDC, 350 mA

Dimensions 175 x 165 x 85 mm 9.5" desktop

The AvaSpec-NIR256 Fiber Optic Spectrometer is based on the AvaBench-50 symmetrical Czerny-Turner design with 256 pixel InGaAs Detector Array. The spectrometer has a fiber optic entrance connector (standard SMA, others possible), collimating and focusing mirror and diffractional grating. A choice of 3 gratings with different dispersion and blaze angles enable applications in the 900-2500nm range. The AvaSpec-NIR256 includes a 16 bit AD converter, and USB2.0 high speed

AvaSpec-NIR256-1.7

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Grating selection table for AvaSpec-NIR256


NIR 900-1750 750 200 1500 NIRA

NIR 1000-2200 980 150 2000 NIRZ

NIR 1000-2500 1470 120 2500 NIRY

Resolution table (FWHM) for AvaSpec-NIR256

Slit size (µm)

Grating (lines/mm) 50 100 200 500

100 15.0 25.0 50.0 90.0

150 10.0 15.0 30.0 60.0

200 6.0 12.0 24.0 50.0


AvaSpec-NIR256-1.7 Fiber Optic Spectrometer, 50 mm Avabench, 256 pixel InGaAs detector, USB powered high speed USB2 interface, incl AvaSoft-Basic, USB interface cable, NIRA grating, 900-1750nm, OSF-1000, specify slit

AvaSpec-NIR256-2.2 Fiber Optic Spectrometer, 50 mm Avabench, 256 pixel InGaAs detector with 2stage TEC, high speed USB2 interface, incl. AvaSoft-Basic, USB interface cable, NIRZ grating, 1000-2200nm, OSF-1000, specify slit

AvaSpec-NIR256-2.5 Fiber Optic Spectrometer, 50 mm Avabench, 256 pixel InGaAs detector with 2stage TEC, high speed USB2 interface, incl. AvaSoft-Basic, USB interface cable, NIRY grating, 1000-2500nm, OSF-1000, specify slit

Options

BT Bluetooth® interface for USB2 platform only, including antenna

SDXXX Internal XXX MB SD card for on board data saving, for USB2 platform only

SLIT-XX Slit size, please specify XX = 50, 100, 200, 500 µm


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AvaSpec –USB1.1 platform The AvaSpec USB 1.1. platform Fiber Optic Spectrometers can be configured as single, dual, triple, quadruple or multichan-nel instrument with up to 8 different spectrometer channels, all read out simultaneously, controlled by a master´s board microprocessor. The simultaneous data-sampling allows fast read-out and ena-bles for example monitoring of short duration events, i.e. pulsed lightsources with different channels looking at the same pulse.Multichannel spectrometers all consist of the same detector type (128, 256 or 1024 or 2048 pixels), the spectrometer channels can of course cover different wavelength ranges or have different resolution specifications. For each channel grating, wavelength range and options need to be specified.

The multichannel spectrometers all run with one USB inter-face and under AvaSoft software.Multichannel housing can be in 9.5" desktop (for 1-4 chan-nels) or 19" rack mount housing (1-8 channels)

AvaSpec –USB2.0 platform – maximum modularityThe new AvaSpec-USB2.0 platform offers maximum modu-larity for multi-channel applications. For each channel a different wavelength range, detector and integration time can be selected, without loosing the advantage of synchroni-zation between the different channels. The AvaSpec-USB2.0 platform uses the USB2.0 bus to connect the different chan-nels to the PC platform and supports up to 127 channels. New applications that can be realized with the AvaSpec-USB2.0 multi-channel platform: • Different integration times or averaging setting per channel, still start each scan simultaneously for all synchronized channels • Different detector types, such as UV/VIS and NIR detectors possible to cover a wide wavelength range with one spectrometer system • More than 8 channels (even up to 127 channels) can be connected through USB2 hubs.

To order a USB2.0 multi-channel, please specify the diffe-rent spectrometers (-RM) and options and the housing (up to 4 channels in desktop, up to 10 channels in rack mount).

AvaSpec Multichannel Fiber Optic Spectrometers


USB1 platform

AvaSpec-DDDD-x-DT/-RM Multichannel AvaSpec-USB1 Fiber Optic Spectrometer with x (max 4) channels in desktop housing,

(–DT) or with max. 8 channels in rack mount housing (-RM) for all channels specify Detector type

DDDD (128/256/1024/2048) grating, wavelength range and options

USB2 platform

AVS-DESKTOP-USB2 Desktop for USB2 platform multichannel AvaSpec, incl. channel synchronization, USB2-hub-4 and

100-240VAC power supply, supports max 4 rackmount unit spectrometer channels.

AVS-RACKMOUNT-USB2 19” Rackmount for USB2 platform multichannel AvaSpec, incl. channel synchronization, USB2-

hub-7 and 100-240VAC power supply, supports max 10 rackmount unit spectrometer channels.

AvaSpec-DDDD-USB2-RM Rackmount Unit USB2 Fiber Optic Spectrometer, self powered high speed USB2 interface, incl.

AvaSoft-Basic software, USB cable and sync cable, specify detector type DDDD (128/256/1024/2048

/3648/2048x14/NIR256), grating, wavelength range and options. Desktop/Rackmount needs to be

ordered separately

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The AvaSpec-2048FT is a special version of the AvaSpec-2048 with USB1 platform, that can start integration time with nano-seconds delay after an external trigger. The external trigger can be applied by TTL signal to a Digital-in port in the AvaSpec´s DB-15 interface connector. A TTL output port is available to trigger a pulsed laser and the nanoseconds delay before star-ting the integration time can be set in software (AvaSoft-Full required), the option for -42 ns negative delay makes it extre-mely useful for measuring pulsed lasers. The TTL output port can be used for Laser Induced Breakdown Spectroscopy (LIBS) and fluorescence applications, where measurement needs to start after the laser has been fired. The AvaSpec-2048FT can be delivered in all configurations and has all features of the AvaSpec-2048.The Multi-channel AvaSpec-2048FT-8 allows you to do LIBS measurements in the 200-1000nm range with 0.1 nm resolu-tion.The USB2 platform offers even more flexibility and speed for the fast trigger applications. The AvaSpec-2048-USB2 have a

AvaSpec-2048FT

AvaSpec Fast Trigger Fiber Optic Spectrometers

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Timing Diagram


AvaSpec-2048FT Fast Trigger Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel CCD detector, USB1.1/RS-232 interface, needs AvaSoft-Full, USB cable and PS-12V/1.0A power supply, specify grating, wavelength range and options

AvaSpec-2048-USB2 Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel CCD detector, USB powered high speed USB2 interface, needs AvaSoft-Full, USB interface cable, specify grating, wavelength range and options

Options See under AvaSpec-2048

programmable laser delay and laser pulsewidth.For the USB2 platform multiple scans can be controlled by software (AvaSoft-Full).

parameter 2048FT 2048-USB2

t1 laser delay fixed 1.3 µs 1.3µs-89sec

Steps for t1 n.a. 21 ns

t2 integr. delay -42ns-2.7ms -20ns-89sec

Steps for t2 42ns 21 ns

t3 pulsewidth fixed 15µs 21ns-1ms

Steps for t3 n.a 21 ns

tint Integr time 2ms-60sec 1.1ms-10min

Steps for tint 1 ms 10µs

Technical Data


Technical Data

AvaSpec-2048TEC Thermo-electric Cooled Fiber Optic Spectrometer

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AvaSpec-2048TEC

Temperature cooled CCD ∆T = -25 -30 °C versus ambient

Time to stabilize 1-2 Minutes

Dynamic Range improvement for it > 5 seconds > Factor 10

Dark Noise improvement for it > 5 seconds Factor 2-3

Peltier cooling internal Power supply 3.0 V, 4A

External Power supply 100-240 VAC, 30W

Dimensions 310 x 235 x 135 mm Desktop

Dynamic Range by at least a factor of 10. As an additional benefit from the cooling the dark noise is reduced by a factor of 2-3.The above features enable the AvaSpec-2048TEC to be implemented in low intensity applications, such as fluores-cence and Raman measurements, where integration times of more than 5 seconds are needed. The AvaSpec-2048TEC can be delivered as one or 2-channel instruments. All the standard options and gratings of the normal AvaSpec-2048 are available.

The AvaSpec-2048TEC is built into a desktop housing, that has a cooling fan to actively ventilate the heatsink of the Peltier cooling element and an internal power supply.

The AvaSpec-2048TEC is also available for the USB2 platform with a temperature regulator.


AvaSpec-2048TEC Thermo-Electric Cooled Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel TE

cooled CCD detector, USB/RS-232 interface, incl AvaSoft-Basic, USB cable in

desktop housing specify grating, wavelength range and options.

AvaSpec-2048TEC-2 Dual-channel Thermo-Electric Cooled Fiber Optic Spectrometer, 2 * 75 mm Avabench,

2048 pixel TE cooled CCD detector, USB/RS-232 interface, incl AvaSoft-Basic,

USB cable, for 2 channels in desktop housing specify grating, wavelength range

and options

AvaSpec-2048TEC-USB2 Thermo-Electric Cooled Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel TE cooled

and regulated CCD detector, USB2 high speed interface, incl AvaSoft-Basic, USB cable, in

desktop housing, specify grating, wavelength range and options

Options See under AvaSpec-2048

The AvaSpec-2048TEC is a special version of the AvaSpec-2048, where the Sony 2048 CCD detector is mounted on a one-stage Peltier cooling device. This Peltier cooling element can reduce the temperature of the CCD chip by -25 - 30°C, improving the

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AvaSpec Bluetooth® Wireless Fiber Optic Spectrometers

AvaSpec BTAll AvaSpec spectrometers with USB2 platform can be delive-red with the optional Bluetooth® wireless interface. This interface enables wireless communication between PC and spectrometer over a distance of up to 100 meters. Optionally an extended Bluetooth® adapter (-BTX) can be used that ena-bles a range of 250 meters, as implemented standard in the HortiSpec spectrometer (page 134).Wireless spectrometers are extremely useful for portable applications or spectrometers to be used in environments, where no PCs can be installed.Bluetooth® spectrometers are standard supplied with a dipo-le miniature size antenna and a Tornado USB adapter for the PC to allow easy installation and configuration. The AvaSoft software automatically recognizes Bluetooth® spectrometer the PC has been paired with. Bluetooth® spectrometers also have an USB2 interface, but for wireless communication need an external 5-12VDC power supply and are therefore equipped with a switch (-SPU2) for either USB2 buspower or external power.

Technical Data

Bluetooth model -SPU2-BT -SPU2-BTX

Range 10-100m 250m

Power consumption 3.3VDC, 1-70 mA (av. 17 mA) 3.3VDC, 10-170 mA (av. 22mA)

Field Strength +7 dBm + 17 dBm

Interface Serial UART

Baudrate 115.2 kbit/sec

Antenna Dipole Comaer 100mm, 360° rotation, right angle adjustable 0-90°


-SPU2-BT Bluetooth® interface for USB2 platform only, range 10-100m, including antenna,

Tornado USB-adapter and switch

-SPU2-BTX Bluetooth® interface for USB2 platform only, extended range 250m, including antenna,

Tornado USB-adapter and switch

For optimal portability we recommend to use the Bluetooth® spectrometer with a 12VDC Batterypack (page 98).


Technical Data Stand-alone mode

AvaSpec Stand alone Fiber Optic Spectrometers

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AvaSpec Stand-alone

Spectrometer All AvaSpec-USB2 platform spectrometers

Power consumption 5-12 VDC, 155 mA

Measurement speed 2 ms (spectrometer and function dependent)

Analog in 2 channel, 0-5 VDC, 10-bit

Digital In 3 Digital in (TTL level)

1 External hardware Trigger

Analog out 2 channel, 0-5VDC, 8-bit

Digital out 10 programmable Digital out TTL level, 0 or 5VDC, max 10 mA

1 external strobe digital out, 1 laser trigger digital out

should output analog or digital signals, that can be directly coupled to Programmable Logical Controlers (PLC) in a pro-cess Control environment.In order to get the desired stand-alone functionality of a spectrometer it is important to define functions, in which the parameters that need to be controlled can be measu-red.These functions can be defined as (max. 8) History Channel Functions and the output values as 8 digital TTL-functions for which thresholds can be set using the AvaSoft-PROC process control software (see page 50) . Also 2 functions can be used to output an 8-bit analog value in the 0-5V Voltage range.After a successful implementation in a PC connected spectrometer, Avantes can be contacted to implement the desired functions into the firmware on-board of the USB2 platform spectrometer. Since most functionality is custom-specific, please contact our technical sales-department for more information on this.

Optionally an on-board SDcard can be installed to save spec-tra on the card and download later to the PC.


Stand-alone One time NRE cost to implement desired functionality in AvaSpec-USB2 spectrometer

All AvaSpec spectrometers with USB2 platform can work in stand-alone mode. The stand-alone mode was developed for process control applications, in which the spectrometer

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AvaBench Optical Benches

AvaBench-75AvaSpec spectrometer components can also be provided as seperate products to be used in OEM applications. Avantes has developed 3 types of optical benches, specially for OEM customers. The optical benches AvaBench-45, AvaBench-50 and AvaBench-75 are symmetrical Czerny-Turner designs with fiber optic entrance connector (Standard SMA, others possible), collima-ting and focusing mirror and diffractional grating. A choice of different gratings with different dispersion and blaze angels enable applications in the 200-2500nm range. Wavelength ranges, resolution tables, detector specifications and AvaBench options can be found in the sections on the AvaSpec products.In the table below the main differences between the optical benches are pointed out.The AvaBenches to be connected to the USB2 platform electro-

Technical Data

AvaBench-45 AvaBench-50 AvaBench-75

Implemented in AvaSpec-128 / 256 AvaSpec-NIR256-1.7/2.2/2.5 AvaSpec-1024/2048/3648/2048x14Focal length 45 mm 50 mm 75 mmNumerical aperture 0.11 0.24 0.07Wavelength range 200-1100 nm 900-1750/1000-2200/ 200-1100 nm 1000-2500nmResolution (FWHM) 0.2 – 40 nm, see table 5 / 10 / 15 nm 0.025 – 20 nm, see tableStray light < 0.15% < 0.1% < 0.1%Gratings different NIRA / NIRZ / NIRY differentSlits 25, 50, 100, 200, 500 µm 50 µm 10, 25, 50, 100, 250, 500 µmDetector TAOS 128 / HAM 256 HAM NIR256-1.7/HAM NIR256-2.2 HAM 1024 / SONY 2048 HAM NIR256-2.5 TOSHIBA 3648 / HAM 2048x14Detector lens VIS (for TAOS only) n.a. UV/VIS (for 2048/3648 only)Order sorting filter See options OSF-1000 See optionsDimensions, weight 82 x 72 x 20 mm, 130 gr. 100 x 90 x 40 mm, 500 gr. 120 x 91 x 21 mm, 255 gr. 177 x 125 x 108 mm, 2.5 kg.


AvaBench-45-128 (-U2)* Optical bench, 45 mm focal length, 128 pixel PDA detector, specify grating, wavelength range and options

AvaBench-45-256 (-U2)* Optical bench, 45 mm focal length, 256 pixel CMOS detector, specify grating, wavelength range and options

AvaBench-75-1024 (-U2)* Optical bench, 75 mm focal length, 1024 pixel CMOS detector, specify grating, wavelength range and options

AvaBench-75-2048 (-U2)* Optical bench, 75 mm focal length, 2048 pixel CCD detector, specify grating, wavelength range and options

AvaBench-75-3648-U2 Optical bench, 75 mm focal length, 3648 pixel CCD detector, specify grating, wavelength range and options

AvaBench-75-2048x14-U2 Optical bench, 75 mm focal length, 2048x14 pixel back-thinned CCD detector, specify grating, wavelength range and options

AvaBench-50-NIR256-1.7 Optical bench, 50 mm focal length, 256 pixel InGaAs detector, grating NIRA, 900-1750nm, 50µm slit, OSF-1000

AvaBench-50-NIR256-2.2 Optical bench, 50 mm focal length, 256 pixel TEC InGaAs detector, grating NIRZ, 1000-2200nm, 50µm slit, OSF-1000

AvaBench-50-NIR256-2.5 Optical bench, 50 mm focal length, 256 pixel TEC InGaAs detector, grating NIRY, 1000-2500nm, 50µm slit, OSF-1000

*for USB2 platform only

nics (AS-5216 boards) have a separate video output through a mini-coax cable. The order code on these AvaBenches is –U2.


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The AS161 is a modularly designed electronics board with a 16-bit microprocessor, 2 channel 14-bit AD converter and USB/RS232-interface. The AS-161 electronics board is a part of the AvaSpec spectrometers and can control 2 Avabench spectrometer chan-nels.Different detector types can be connected to the electronics board interface connectors, such as TAOS Photo Diode Arrays TSL 1301/TSL1401, Hamamatsu C-MOS detectors (for example S8378-256Q, S8378-1024Q) and Sony CCD detectors (ILX511, ILX554B).The board is equipped with an additional sub D15 digital IO connector with 14 programmable I/O ports (2 DI, 12 DO). One digital out port is reserved for controlling the flash rate of an external Xenon strobe (single or multiple flashes per scan), one digital out port can be used to control external TTL-shutter devices, for the AS-161-FT-ILX one digital output is reserved for external control for flashing a laser source in LIBS applications. One digital in is reserved for external hardware trigger. The on-board firmware controls the simultaneous data-sampling of the 2 channels, the sampled data is processed through a F(irst) I(n) F(irst) O(ut) interface with possibility of speeding up data

transmission time by data reduction, defining a start and stop pixel per channel. The gain and offset parameters can be adap-ted per channel as well. The Firmware controls the USB and/or RS-232 interface.The board can be operated by the extensive AS-161-DLL with many functions to control the electronics board and data sam-pling parameters (see software section).Multichannel (3 up to 8 channels) capability can be achieved con-necting the master board (AS161M) with backplane connector to 1-3 slave boards (AS161S) with each 2 AD converter channels.

Technical Data

Microprocessor Infineon, C161RI, 16 bit, 24 MHz

Memory 128 K EEPROM, 128K RAM, 8 bit

A/D converter 14 bit, 2 channels

Integration time 2ms – 60 seconds

Sony ILX511/554 2048 pixels, 2 MHz, 14-31 msec /scan (10-2048 pixels) for 1 channel

Data Transfer speed Hamamatsu 8378-256Q, 200kHz, 7-9 msec /scan for 1 channel

TAOS 1301/1401, 2MHz, 6-7 ms / scan for 1 channel

USB interface Version 1.1, 12 Mbit

RS-232 interface Baudrate 115200 bps, DB-9 female connector

Power supply 12 VDC, reverse polarity protection, 160 mA (+ 20 mA per detector)

Temperature range 0 - 55 °C

Dimensions, weight 162.5 x 100 mm, 97 gr.

ORDERING INFORMATIONAS161 Microprocessor board with 2 channel 14-bit AD and RS-232/USB interface, specify detector type, see belowAS161M AS161 master board with RS-232/USB interface and backplane connector, specify detector type, see belowAS161S Slave board with 2 channel 14-bit AD and backplane connector, specify detector type, see below

For all boards, specify detector type

-ILX for Sony ILX511 / 554B detectors (AvaSpec-2048)-FT-ILX Fast trigger FPGA for LIBS and fluorescence for Sony ILX554B detector (AvaSpec-2048FT)-H8378-256 for Hamamatsu S8378-256 detectors (AvaSpec-256)-H8378-1024 for Hamamatsu S8378-1024 detectors (AvaSpec-1024)-TAOS for TAOS 1301/1401 detectors (AvaSpec-102/128)

AS161 Microprocessor board

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AS5216 Microprocessor board

Technical Data

The AS-5216 is a revolutionary new design electronics board to sup-port a wide range of new detectors and both high speed (USB2.0) and wireless (Bluetooth®) communication. The AS-5216 board is based on a powerful 5216 Coldfire® processor, running at 64 Mhz, 16-bit AD converter and USB2.0/RS232-interface. The AS-5216 electronics board is part of the AvaSpec-USB2 platform spectrometers.Different detector types can be connected to the electronics board, such as TAOS Photo Diode Arrays (TSL1301, TSL1401), Hamamatsu C-MOS detectors (S8378-256Q, S8378-1024Q), Sony CCD detectors (ILX554B), Toshiba CCD detectors (TCD-1304), Hamamatsu back-thinned CCD detector (S9840) and Hamamatsu InGaAs NIR detectors (G92xx series).For the Hamamatsu back-thinned detector a separate power con-verter board is needed and for the NIR detector 2.2/2.5µm a sepa-rate TE controller board is needed. The board is equipped with an additional HD26 digital IO connector with 13 programmable IO ports (3 DI, 10 DO), 2 analog out ports and 2 analog in ports. One digital


AS5216 Microprocessor board 16-bit AD and USB2.0/RS-232 interface, specify detector type, see belowAS5216-BT Microprocessor board 16-bit AD and USB2.0/RS-232 and Bluetooth Interface, SD card, specify detector type, see belowFor all boards, specify detector type- ILX for Sony ILX554B detectors (AvaSpec-2048-USB2)- H8378-256 for Hamamatsu S8378-256 detectors (AvaSpec-256-USB2)- H8378-1024 for Hamamatsu S8378-1024 detectors (AvaSpec-1024-USB2)- TAOS102 for TAOS 1301 detectors (AvaSpec-102-USB2)- TAOS128 for TAOS 1401 detectors (AvaSpec-128-USB2)- TOS3648 for Toshiba 1304 detectors (AvaSpec-3648-USB2)- HAM2048x14 for Hamamatsu S9840 detectors (Avaspec-2048x14-USB2), extra pcb incl.- NIR256 Hamamatsu G92xx series InGaAs NIR detectors (AvaSpec-NIR256-1.7)- NIR256TEC Hamamatsu G92xx series with TEC InGaAs NIR detectors (AvaSpec-NIR256-2.2/2.5), extra pcb incl.

Microprocessor Coldfire®‚ 5216, 32 bit, 64 MHz

Memory 512 KB Flash Memory, 64KB RAM

External Memory (optional) SD card with FAT12/16/32 file system 64MB-16GB

A/D converter 16 bit, 2 channels for video signal

Integration time 10 µsec – 10 minutes (detector dependent)

1.8 msec/scan for Sony ILX554 2048 pixels, 2 MHz 1.5 msec /scan for Hamamatsu 8378-256Q, 500 kHzData Transfer speed 1.1 msec/scan for TAOS 1301/1401 2MHz 3.7 msec /scan for Toshiba TCD1304, 1 MHz 2.24 msec/scan for Hamamatsu S9840, 1.5 MHz 1.6 msec/scan for Hamamatsu 92XX, 500 kHzUSB interface 2.0 high speed, 480 Mbps

RS-232 interface Baudrate 115200 bps, HD-26 female connectorBluetooth® Interface (optional) 721 kbit/sec, external antenna

DIO interface HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, synch.

Power supply Default USB power, 350 mA 12 VDC, reverse polarity protection, 350 mA

Temperature range 0- 55 °C

Dimensions, weight 162,5 x 100 mm, 97 grams

out port is used for controlling the flash rate of an external Xenon strobe (AvaLight-XE), one digital out port is used to control external TTL-shutter devices, one digital output is reserved for external control for flashing a laser source in LIBS applications. One digital in is used for external hardware trigger. The AS-5216 board can be synchronized with other AS-5216 boards to control the simultaneous data-sampling of 2-127 channels, all connected to USB2.0 high speed interface.On-board signal processing allows data reduction to speed up scan transfer time. Data reduction can be achieved by defining a start and stop pixel and On-Board Averaging. Optional a Bluetooth® interface for wireless communication and on-board SD card for stand-alone applications (no PC connected) is available.The board can be operated by the extensive AS-5216-DLL with many functions to control the electronics board and data sampling para-meters (see software section).


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For both AvaSpec-USB1 and -USB2 platform spectrometers a wide range of interface cables is available to connect to our light sources and comprehensive line of accessories.

In the tables below information can be found what interface cable should be ordered for which configuration for both USB1 and USB2 platforms. Generally the interface cables are 2m long, different lengths are available on request.

USB1 platform spectrometers (DB15/DB9 connector)

Connect to Product code Description

RS-232 IC-DB9-2 Interface cable AvaSpec to RS-232, 9 pole

USB IC-USB-2 Interface cable AvaSpec to USB port on PC, 2m

AvaLight-S / AvaLight-XE IC-DB15-2 Interface cable AvaSpec to AvaLight-S with shutter for auto save dark/ lamp off, AvaLight-XE control

External Hardware Trigger IC-Extrig-2 Interface cable AvaSpec-USB1 to External trigger pushbutton, 2m

Avalight-S / Avalight-XE IC-DB15-Extrig-2 Interface Y-cable AvaSpec to External trigger pushbutton External Hardware Trigger and AvaLight-S with shutter, 2m

Avalight-S IC-DB15-FOS2-2 Interface Y-cable AvaSpec-USB1 platform to FOS-2 FOS-2 and AvaLight-S with shutter, 2m

Avaspec Spectrometer interface cables

USB2 platform spectrometers (DB26 / SMB connector)

Connect to Product code Description

RS-232 IC-DB26/DB9-2 Interface cable AvaSpec-USB2 platform DB26 male to RS232 DB9 female cable, 2m

USB2 IC-USB2-2 Interface cable AvaSpec to USB port on PC, 2m

AvaLight-S / AvaLight-XE IC-DB26-2 Interface cable AvaSpec-USB2 platform to DB15 for AvaLight-S with shutter for auto save dark/ lamp off, AvaLight-XE control

External Hardware Trigger IC-Extrig-USB2 Interface cable AvaSpec-USB2 to External trigger pushbutton, 2m

RS-232 IC-DB26/DB9/DB15-2 Interface Y cable AvaSpec-USB2 platform to RS-232 (DB9) AvaLight-S / AvaLight-XE and AvaLight-S (DB15) with shutter for auto save dark/ lamp off, AvaLight-XE control

Avalight-S / Avalight-XE IC-DB26-Extrig-USB2 Interface Y-cable AvaSpec-USB2 to External trigger pushbutton External Hardware Trigger and AvaLight-S with shutter, 2m

Avalight-S IC-DB26-FOS2-2 Interface Y-cable AvaSpec-USB1 platform to FOS-2 FOS-2 and AvaLight-S with shutter, 2m

Other USB2 spectrometer IC-COAX-SMB-0,25 Synchronization coax cable with 2 SMB connectors 0.25m for Avaspec USB2 platform

Avaspec interface cables

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AvaSpec services and calibrations

Wavelength calibrationAll AvaSpec spectrometers standard come with a wavelength calibration and coefficients to calculate wavelength from pixelnr which are installed on-board, inside of the AvaSpec’s EEPROM.Under normal conditions the wavelength calibration does not need to be redone, since the spectrometers have no moving elements inside. If a wavelength shift is measured vs. the original wavelength calibration, then the spectrometer can be recalibrated by the end-user, using the Avalight-CAL with the auto-calibration software routine in AvaSoft-FULL.As an option the spectrometer can also be returned to Avantes for recalibration, called Spectral-cal-service. Before returning the spectrometer an RMA authorization number needs to be obtained.

Non-linearity Calibration Most detectors of the AvaSpec spectrometers have a good lin-ear behavior in their intensity output, which means that there is a better than 95% correlation between raw signal in A/D counts and the light intensity at the spectrometer entrance.However for some applications, which require a wide dynamic range, such as highly absorbing substances or low light level applications, combined a high accuracy a non-linearity cali-bration of the detector is recommended. This NL-calibration is performed on the detector array and the output signal is linearized to better than 99%.A complete report and the calculated NL calibration coeffi-cients are delivered with the spectrometer.For irradiance calibrations the NL-calibration is automatically included.


Spectral-cal-service Spectral calibration service for an AvaSpec, incl. calibration sheet

NL-calibration Non-linearity calibration service (per channel)

IRRAD-CAL-UV Irradiance calibration service UV range (200-400nm) per channel, incl. NL-calibration, needs AvaSoft-FULL, AvaSoft-IRRAD and -SR fibers

IRRAD-CAL-VIS Irradiance calibration service VIS range (360-1100nm) per channel, incl. NL-calibration, needs AvaSoft-FULL and AvaSoft-IRRAD

IRRAD-CAL-NIR Irradiance calibration service NIR range (1100-2500nm) per channel, incl. NL-calibration, needs AvaSoft-FULL and AvaSoft-IRRAD

IRRAD-CAL-UV/VIS Irradiance calibration service UV/VIS range (200-1100nm) per channel, incl. NL-calibration, needs AvaSoft-FULL, AvaSoft-IRRAD and -SR fibers

Irradiance calibrationApplications that use the spectrometer to measure the light energy of unknown sources require an irradiance calibrated spectro-meter.For all AvaSpec spectrometers both irradiance and radiance calibrations can be offered. Irradiance calibrations (µW/cm²) are normally performed on a system with a fiber optic cable and a cosine corrector or integrating sphere. Radiance calibra-tions (µW/cm²/sr) can be performed on a spectrometer and a bare fiber or fiber with collimating lens looking at a diffuse illuminated surface. The (ir)radiance calibrations can be performed for 3 different wavelength ranges, UV (200-400nm), VIS (360-1100nm) and NIR (1100-2500nm). All systems are calibrated versus an NIST traceable irradiance calibration standard and come with a complete report and calibration files, which can be loaded directly in AvaSoft-IRRAD.More information on irradiance can be found in the software section (AvaSoft-IRRAD – page 47) and the section applications – irradiance measurements, page 122.Alternatively irradiance calibrated light sources, such as AvaLight-DHS-Cal and AvaLight-HAL-CAL (page 64-65) are avail-able to perform your own irradiance calibration.

Documents

Spectrometers - Find The Needlepdfs.findtheneedle.co.uk/6475-Spectrometers.pdf · spectrometers, enabling fast ... intensity in the UV-, VIS-, ... Introduction Fiber Optic Spectroscopy