Broptics: the Only FBG Source from Taiwan

The Filter that Breaks Grading

Broptics Communications Corp

Mar 29, 2002

Company Background

Founded in Oct, 2000 Initial capital: NTD150M (~USD 4M) Current employees: 20

2 Ph.D, 9 MS in related sciences Operating location

Taiwan office: Operation headquarter, RD, manufacture, AP sales/marketing, business development

US office: Sales, marketing, business development Main products

Fiber Bragg Grating (FBG) filters and applications Athermal packaging services

Broptics Organization

General Manager: Dr John Lin

USA Business Office: Joe Chiu

Sales & Marketing: Alpha Tsai

RD1 Laser Writing & Packaging

RD2 Ceramic Material

QA & Telcordia Test

Manufacture

Admin & Finance

Service

Goal

To be the world FBG supply center

Technologies Cost

Time

Milestone

Oct, 2000 Feb, 2001 Feb, 2001 Mar, 2001 Apr, 2001 Jul, 2001 Aug, 2001 Oct, 2001 Nov, 2001

Jan, 2002 Mar, 2002

Broptics established

Announce 100G FBG filter

Release mechanical athermal packaging

Announce 50G FBG filter at OFC

Legal license FBG patent from UTC/CRC

Release Pump Laser Stabilizer & Wavelength Locker

Join OptoWorld, Taipei

Join ECOC, Amsterdam

Research fund granted from Economic Bureau for “Ultra narrow channel spacing FBG development”

Announce Gain Flattening Filter at FOE, Tokyo

Announce NTE ceramic at OFC

Broptics Technologies Fiber grating laser writing

Short period Bragg gratings Long period gratings Chirped gratings

Athermal packaging technologies Ceramic packaging Mechanical packaging

Performance measurement and testing Instruments and know-how of optical measurement Belcore 1209/1221 testing

Main Product

ITU spec FBG 50G FBG filter for DWDM & OADM

Specialty and customer spec FBG 980/1480nm EDFA Pump laser stabilizer Laser diode wavelength locker Gain flattening filter

Packaging services Mechanical athermal packaging Ceramic athermal packaging

Labs & Facilities

Laser writing facility Lab 1: Lambda Physics L1-FBG Lab 2: TuiLaser BraggStar Industry

Ceramic lab facility Lab 1: Ceramic Process Lab Lab 2: Heating Treatment Lab

Quality testing facility Environment testing Telcordia compliance test

Product Roadmap

Ceramic athermal package

2002 2003

Mechanical athermal package

25G FBG

Low dispersion 50G FBG

50G FBG

980/1480 Pump laser stabilizer

Dual grating stabilizer

Wavelength locker for laser diode

Chirped FBG Gain flattening filter

Long Period Gain flattening filter

Tunable filter

Dispersion compensation

Focused Products

Current Stage 50G FBG Filter for OADM EDFA Pump Laser Stabilizer Chirped FBG Gain Flattening Filter

3Q, 2002 LPG Gain Flattening Filter Compact Ceramic Packaging

4Q, 2002 Tunable Filter for Re-configurable Applications Low Dispersion 50G FBG Filter

Possible Use of FBG in DWDM System

MultiplexerDispersion control EDFA

OADM

SwitchEDFADemux

ITU FBG filter Dispersion

compensation filter

Pump stabilizer & Gain flattening

filter

ITU FBG filter

Tunable filter

ITU FBG filter

Pump stabilizer & Gain flattening

filter

E/O

Wave locker

Monitor

Monitor sensor

Available Developing

FBG-based OADM

FBG itself provides unique functions: Very low insertion loss Flat-top response Steep slope Very high channel isolation

Best choice for 50G OADM TFF can’t match the specs AWG can’t match the cost

1548 1549 1550 1551 1552W avelength (nm )

- 3 5

- 3 0

- 2 5

- 2 0

- 1 5

- 1 0

- 5

0

Ref

lect

ivit

y (d

B)

100G

50G

Flat-top

Steep slope

High ch. isolation

Low IL

FBG, the best choice for 2/4/8 ch 50G OADM

FBG-based Gain Flattening Filter

FBG provides unique features for GFF Short prototyping lead time Accurate gain profile fitting Flexible order qty

1525 1530 1535 1540 1545 1550 1555 1560 1565W avelength (nm )

- 4

- 3

- 2

- 1

0

Lev

el (dB

)

1525 1535 1545 1555 1565W avelength (nm )

-0 .5

0.0

0.5

Err

or

(dB

)

Target

M easured FBG benefits over TFF Time saving for spec-in Cost saving for model introduction & ramp up Economic ordering qty to reduce inventory

Laser Stabilizer & Wavelength Locker

FBG acts as an external mirror or cavity for laser diode Fixed laser emission behavior Enhance accuracy Allow production tolerance

976 978 980 982 984Wavelength (nm )

0 . 0

0 . 5

1 . 0

1 . 5

2 . 0

2 . 5

3 . 0

Ref

lect

ivity

(%)

-50

-40

-30

-20

-10

0

10

20

970. 0 971. 5 973. 0 974. 5 976. 0 977. 5 979. 0 980. 5 982. 0 983. 5 985. 0

Stabilizer Makes EDFA design easier and accurate Wavelength Locker Allows narrower bandwidth and higher channel counts

NTE Ceramic Athermal Package Zirconium Tungstate (ZrW2O8), the incredible shrinking

materials Negative thermal expansion crystallized structure

Compensates for FBG thermal effects CTE tuning range good for photosensitive specialty fiber t

hermal compensation Compact

Minimize FBG packaging Possible multi-FBG package

Broptics Advantages

Service

Technologies Cost

Time

• Versatile FBG technologies• Packaging technologies

• Made in Taiwan efficiency• Low operation overhead

• Fast customer prototyping• Efficient production

• Quick response to customers• Strong technical support