Comcore Technologies’ Property Information 1 Introduction of Technologies and Products Dr. Yong Huang Chairman & CEO

Comcore Technologies’ Property Informationwww.comcore.com.cn

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Introduction of Technologies and Products

Dr. Yong Huang

Chairman & CEO


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•Passive Component Functions

•Company’s Essential Technologies

•Fused Fiber Components for Sensing Systems

•Fused Fiber Component Reliability

•Manufacturing Capabilities and Capacities

•Development Trends of Fused Fiber Products


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Fused Fiber Component Concept

Signal Management

Power Management

Wavelength Management

Polarization Management

Dispersion Management

Product Function Summary


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Fused Fiber Component Concept

•Power Management -Splitter, Tap, Mixer, Attenuator, GFF, Isolator, Circulator

•Wavelength Management -WDM, DWDM,CWDM, Interleaver, ADM

•Polarization Management -PDM, Polarization Controller, Depolarizer

•Dispersion Management

-Dispersion Compensator


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Fused Fiber Product Concept

Fusion Micro-Optic/Coating Waveguide Grating

Splitter X X X

Tap X X X

Mixer X X X

WDM X X X X

Attenuator X X

GFF X X X

Interleaver X X X X

Isolator X

Circulator X

Technologies for producing These Products


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Fused Fiber Product Concept

CouplerCoupler

Longitudinal Coupling (Coupler)

Transverse Coupling (Coupler)

LensFiber1 Fiber2

Fiber1Fiber2

Product Structures


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Company’s Essential Technologies

1. Multiple-Functional FFP Workstations

2. Fused Fiber Product Technologies


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Company Essential Technologies

Own Fused Fiber Product Workstations(Model: FFP5000, FFP6000)

Sophisticated Sophisticated •Mechanical Design

•Electrical Design

•7-Axis Automatic Control

•Advanced Process Control


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Company Essential Technologies

•SuperfusionTM Technology

•UnifusionTM Technology

•MicrobendTM Technology

Combination of

The most advanced manufacturing process


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Highlight of Fabrication:

SuperfusionTM Technology

Normal Process Comcore Tech’s process

Stick together Fully-fused together

Heating Temperature: around 1000C around 1700C


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Cross-sectional Shape in Package


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Product Features1. The structure of coupling region is very strong, the cross-sectional

shape looks like a twin core fiber.

2. Optical characteristics of devices are , relatively speaking, insensitive

to surrounding environment.

3. Very small twisted effect due to almost circularly symmetric

structure of cross-section.

4. Eliminate micro-cracks on the surface of fibers included in non-coupling

and coupling region of coupler to protect the moisture enters these

micro-cracks and proliferates them, causing coupler degradation and

ultimate failure.

5. Improve polarization dependent loss.



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UnifusionTM Technology

Highlight of Fabrication Process

For making Monolithically-Fused Fiber Broadband Splitters such as 1x3, 1x4, 1x8 Splitters


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• No Pre-Tapered Fibers

• High Reliability

• Low PDL

• Compact Packaging Size

• Single Fusion Region for 1xN Splitters

Product Features:

Narrowband:+/-10nm, Broadband:+/-40nm, Two Windows:1310 &1550+/-40nm


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Fused Fiber Products

COMCORE 800800809

100%

1%

1%

1x3 1:98:1 Taps

98%



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COMCORE 800800807

100%

33%

33%

1x3 33:33:33 Splitter

33%



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COMCORE 800800808

100%

49%

49%

1x3 49:2:49 Tap

2%



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COMCORE 800800811

100%

25%

25%

1x4 25:25:25:25 Splitter

25%

25%



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MicrobendTM Technology


High Return Loss for 1x2 ConfigurationHigh Return Loss for 1x2 Configuration


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MicrobendTM Technology

Regular Termination Process>50dB for Short-Term, unstable

Comcore’s Termination Process>60dB for Permanent, stable

UV glue

Glue-free


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•Component Structures for Sensing Systems





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Component Structures for Sensing Systems

1x2 Splitter

2x2 Mixer

Tap (10%)

1. Two-fiber based components

a. a. Configuration and FunctionConfiguration and Function


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1. Two-fiber based components

b. Phase difference and output powerb. Phase difference and output power

Where a(0) is amplitude of modal field at Z=0 ( initial condition).

)0(

)0(

))(cos())(sin(

)(sin())(cos(

)(

)(

2

1

2

1

a

a

zzCzzCi

zzCizzC

za

za

))(sin()(

))(cos()(

2

1

zzCiza

zzCza

When 0)0(,1)0( 21 aa

))((sin)()(

))((cos)()(2*

222

2*111

ZCzazaP

ZCzazaP


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1x2 Splitter

2. Three-fiber based components(Structure1)

a. Configuration and FunctionConfiguration and Function 1 2 3

Structure

0

1

2

3

4

5

6

1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600

Wavelength (nm)

Inse

rtio

n L

oss

(d

B) port1

port2

No-PDL 1x2 Broadband 50:50 Splitter (<0.01dB)


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1x3 Splitter

2. Three-fiber based components(Structure1)

a. Configuration and FunctionConfiguration and Function

))())((

))()()((

))((

3123

32212

2111

zaaCidz

(z)da

zaC(z)a(z)aCidz

(z)da

(z)aC(z)aidz

(z)da

)))(2(sin)(22

)(2

)))(2(sin)(2

)(21

222

2231

222

221

zCC

CPP

zCC

CP

1 2 3

Structure


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1x3 Splitter

2. Three-fiber based components

b. Typical wavelength responseTypical wavelength response


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3x3 Mixer

2. Three-fiber based components (Structure2)


))())()((

))()()((

))()()((

3213

3212

3211

zaaC(z)aCidz

(z)da

zaC(z)a(z)aCidz

(z)da

zaC(z)aC(z)aidz

(z)da

23

22

21

))(3(sin9

4

))(3(cos9

81

PP

zCP

zCP


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1x4 Splitter

3. Four-fiber based components(Structure1)



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4x4 Mixer

3. Four-fiber based components(structure2)

a. Function and structurea. Function and structure


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1x4 Splitter

1x5 Splitter

4. Five-fiber based components

StructureStructure



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4. Five-fiber based components

b. Typical wavelength response of 1x4 broadband splitter


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1x7 Splitter

5. Seven-fiber based components

SM MMSM MM


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1x8 Splitter

6. Nine-fiber based components

a. Configuration and Structurea. Configuration and Structure


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6. Nine-fiber based components

b. Output power versus pulling lengthb. Output power versus pulling length


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0

1

2

3

4

5

6

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000Time in Hours

Insert

ion

Lo

ss (

dB

)

Port 2

Port 3

Results of Damp Heat Test for 1x2 Splitter

Fused Fiber Component Reliability

Comcore Technologies

(85°C/RH85%)


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Results of Damp Heat Test (85°C/85% RH)

Results of Damp Heat Test (85°C/85% RH) Fused Fiber Component Reliability

A Competitor Fiber Optics’s Results in Two Different Package Condition only for Output Port1 for 3-dB Splitter


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-0.12

-0.08

-0.04

0

0.04

0.08

0.12

0 1000 2000 3000 4000 5000Time (Hours)

De

lta

PD

L (

dB

)

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

No.9

No.10

No.11

PDL with Damp-Heat Testing Time at Port2 for 1550nm 50:50 1x2 Splitter

(85°C/RH85%)


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-0.12

-0.08

-0.04

0

0.04

0.08

0.12

0 1000 2000 3000 4000 5000

Time (Hours)

De

lta

PD

L (

dB

)

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

No.9

No.10

No.11

PDL with Damp-Heat Testing Time at 5% Port for 1550nm 95/5% 1x2 Tap

(85°C/RH85%)


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Results of Damp Heat Test (85°C/85% RH)

Results of Damp Heat Test (85°C/85% RH) Fused Fiber Component Reliability

Top Management Team of Famous Company and Dr. Huang


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Manufacturing Capabilities and Capacities

1. Flatness / Uniformity for Insertion Loss

2. Flatness / PDL/ Bandwidth

3. Polarization Dependent Loss

4. Ultra-High Reliability


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Production Line

18 Own Workstations: FFP5000 and FFP6000


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For Non-Communication System Applications

Product Name Key Spec. Qty

Ultra-High Reliability 1x2 Splitter/2x2 Mixer (80um,

125um fiber)

>25 years lifetime 2000

Ultra-High Reliability 1x3 Splitter (80um, 125um fiber) >25 years lifetime 1500

Ultra-High Reliability 3x3 Mixer (80um, 125um fiber) >25 years lifetime 1000

Single-Fusion 1x4/4x4 Single Mode Splitter IL max <7.0/7.5 dB 500

Single-Fusion 1x7 Multimode Splitter (100/140um fiber) IL max <11dB 200

Single-Fusion 1x8 Splitter IL max <21.0 dB 100


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Trends of Fused Fiber Components For Non-

Communication Systems

PDL-free

Ultra-High Reliability

Ultra-flattened Response

Performance:Performance:


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Communication Systems

Multi-Mode Optical Fiber

Single Mode Optical Fiber

Polarization-Maintaining Fiber

No-Core Optical Fiber

Different Material:Different Material:


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Communication Systems Features:Features:

Cost: Reduction

Function: Integration

Product Size: Miniature

Documents

Comcore Technologies’ Property Information 1 Introduction of Technologies and Products Dr. Yong Huang Chairman & CEO