II-VI/Finisar 100Gb CWDM4 Optical Transceiver

©2021 by System Plus Consulting | SPR21615 - II-VI/Finisar 100Gb CWDM4 Optical Transceiver | Sample 1
22 bd Benoni Goullin
44200 NANTES - FRANCE +33 2 40 18 09 16 info@systemplus.fr www.systemplus.fr
II-VI/Finisar 100Gb CWDM4 Optical
Transceiver
Deep analysis of FTLC1157RGPL-TE, the 100Gb CWDM4 optical
transceiver from the US leading supplier
SPR21612 - Photonics report by Sylvain Hallereau
Laboratory analysis by Youssef El Gmili
March 2021 – Sample
REVERSE COSTING® – STRUCTURAL, PROCESS & COST REPORT

Table of Contents
Overview/Introduction 3
o Executive Summary
o Reverse Costing Methodology
Company Profile 8
o II-VI
Market Analysis 13
o Ecosystem & Forecast
Physical Analysis 17
o II-VI 100G CWDM4 Teardown
✓ Module Views
✓ Function Identification
o Transmitter Block
✓ View, Dimensions and Cross-Section
✓ Fiber Optic Coupler, Prism and Rotator
✓ Light Way and lens
o Maxim MAX24025IMP Die
✓ Die Overview and Dimensions
✓ Die Process and Cross-Section
o II-VI Finisar Photodiode Die
✓ Die Overview and Dimensions
o II-VI Finisar InP Laser
✓ InP Waveguide
✓ InP Electro-absorption Modulator
✓ Laser Process and Cross-Section
o Receiver Block
✓ Fiber Optic Coupler
✓ Light Way
✓ AWG
o II-VI Finisar InP Photodiode Die
✓ Die Views & Dimensions
o Semtech GN2110 TIA Die
✓ Die Overview & Dimensions
Manufacturing Process 151
o Optical Elements
o Maxim Die Fab Unit
o InP Photodiode Emitter Flow & Unit
o InP Laser Flow & Unit
o InP Diode Flow & Unit
o TIA Die Fabrication Unit
o Transceiver Assembly Unit
Cost Analysis 169
o Summary of the Cost Analysis
o Yields Explanation & Hypotheses
o Transmitter Block
o Maxim MAX24025IMP
o Finisar Emitter photodiode Die
o Finisar InP Laser Die
o Optical Elements
o Receiver Block
o Finisar InP Photodiode Die
o Semtech TIA & CDR Die
o Optical Element
o Transceiver Assembly Cost
o Optical Transceiver Cost
Feedback 208
Related Analyses 210
SystemPlus Consulting Services 212

Overview / Introduction
o Executive Summary
o Reverse Costing Methodology
o Glossary
Company Profile & Supply Chain
Market Analysis
Physical Analysis
Physical Comparison
ManufacturingProcess Flow
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Executive Summary
This full reverse costing study has been conducted to provide technology data, manufacturing cost and the selling price
of the Finisar’s FTLC1157RGPL-TE 100Gb CWDM4 transceiver. Finisar's 100G CWDM4 100G optical transceiver allows
communication up to 2km. The Finisar solution is based on the Maxim MAX24025IMP and the Semtech GN2110.
The transceivers come with two separated lines, each with several dies. The transmitter integrates four InP lasers driven
by the Maxim dies. Other components are added to the system in order to focus or isolate the signals. It uses InP
Distributed FeedBack (DFB) lasers. The multiplexer is based on several narrow bandpass filters to create the spatial
multiplexer. The connector assembly is complex, with all the optical parts of the multiplexer.
The receiver function is performed by InP photodiode die, a TransImpedance Amplifier (TIA) and Clock and Data
Recover (CDR) function circuit. A fiber optical coupler and Arrayed Waveguide Grating (AWG) demultiplexer are used to
connect the photodiode die with the fiber optic.
This report contains an exhaustive analysis of the Finisar's 100G CWDM4 optical transceiver. It includes a full analysis of
the laser dies, photodiode dies, the TIA-CDR circuit, a cost analysis and price estimate. Scanning Electron Microscope
(SEM) pictures, cross-sections, Energy Dispersive X-ray (EDX analysis) have been used to to identify the different
materials used in manufacturing and to to show all the technical characteristics of the main component of the optical
transceiver. The report presents details also on the optical parts and the assembly line. Finally, the report presents a
calculation of the cost of assembly of the electronic and the optical parts and an estimation of selling price.

Market Analysis
Physical Analysis
o 100G CWDM4 Teardown
o Transmitter Block
o View, Dimensions, Cross-
Section, Fiber Optic Coupler
o Maxim MAX24025IMP
o Die View & Cross-section
o Finisar Emitter Photodiode Die
o Finisar InP Laser die
o InP Laser
o Receiver Block
o Fiber Optic Coupler, AWG
o Die View & Cross-Section
Cost Analysis
Feedbacks
Related Analyses
About System Plus
II-VI 100G CWDM4
II-VI 100G CWDM4 Front side
©2021 by System Plus Consulting
II-VI 100G CWDM4 Front, Side and Back View
Dimensions
o Height: 121 mm
o Width: 18.4 mm
o Thickness: 8.5 mm
121 mm
69.46 mm
8.5 mm
12.95 mm
18.4 mm
Weight
o 60g

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
II-VI 100G CWDM4 Teardown

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
II-VI 100G CWDM4 – Transmitter Block
Transmitter – Optical View

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Laser Chip Carrier

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Laser Die Functions Area
Die Overview
Die Overview ©2021 by System Plus Consulting

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Laser Die Functions Area - Laser Cross-Section
Laser Cross-section – Optical view
Die cross-section

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Die Delayering – InP Photodiode Die
Die Overview

Market Analysis
Physical Analysis
o Transmitter Block
o Maxim MAX24025IMP
o InP Laser
o Receiver Block
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Semtech GN2110B - Die View & Dimensions
Die Overview

Market Analysis
Physical Analysis
Cost Analysis
o Cost Analysis Summary
o Yields Explanation &
Hypotheses
o Transmitter Block
o Maxim MAX24025§IMP
o InP Photodiode Die
o InP Laser Die
o Optical Elements
o Receiver Block
o Semtech TIA Die
o Optical Element
o Transceiver Assembly
Feedbacks
Related Analyses
About System Plus
Maxim MAX24025IMP Die Cost

Market Analysis
Physical Analysis
Cost Analysis
Hypotheses
o Transmitter Block
o InP Laser Die
o Optical Elements
o Receiver Block
o Semtech TIA Die
o Optical Element
Feedbacks
Related Analyses
About System Plus
Optical Element BOM

Market Analysis
Physical Analysis
Cost Analysis
Hypotheses
o Transmitter Block
o InP Laser Die
o Optical Elements
o Receiver Block
o Semtech TIA Die
o Optical Element
Feedbacks
Related Analyses
About System Plus
Transceiver Connector Assembly Cost

Market Analysis
Physical Analysis
Cost Analysis
Hypotheses
o Transmitter Block
o InP Laser Die
o Optical Elements
o Receiver Block
o Semtech TIA Die
o Optical Element
Feedbacks
Related Analyses
About System Plus
Optical Transceiver Cost

R E L A T E D
A N A L Y S E S
R E L A T E D
A N A L Y S E S

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
Related Analyses
RELATEDREPORTS
By System Plus Consulting:
• InnoLight’s 400G QSFP-DD Optical Transceiver
• Intel Silicon Photonic 100G CWDM4 QFSP28 Transceiver
• Intel Silicon Photonic 100G PSM4 QFSP28 Transceiver
By Yole Développement:
• Optical Transceivers for Datacom & Telecom 2020
• Silicon Photonics 2020

COMPANY
SERVICES

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
o Company services
o Contact
A Structure, Process and Cost Analysis
Reverse Costing® consists in disassembling a device or a system, in order
to identify its technology and determine its manufacturing processes and
cost, using in-house models and tools.
Our Core Activity : The Reverse Costing®

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
o Company services
o Contact
Fields Of Expertise

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
o Company services
o Contact
Business Model
Teardown
Track
205+
teardowns per
year
Monitor
1 per year
quarterly
updated
Custom
Analysis
150 custom
analyses per
year
Report
60+ per year
Costing
Tools
5 process-based
and 3 parametric
costing tools
Cost
Methods
Training
On demand

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
o Company services
o Contact
Worldwide presence
100+ collaborators in 8 different countries
Headquarters
› Nantes – System Plus Consulting
› Lyon – Yole Développement
Boise
Cornelius
Raleigh
Phoenix
Austin
Singapore
Hsinchu
Tokyo
Shenzhen
Seoul
Frankfurt
Nantes
Lyon

Market Analysis
Physical Analysis
Cost Analysis
Feedbacks
Related Analyses
About System Plus
o Company services
o Contact
Contact
HEADQUARTER
& CUSTOM PROJECT SERVICES
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44200 Nantes, France
sales@systemplus.fr - +33 2 40 18 09 16
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TRACKS WEBSITE
www.reverse-costing.com
MARKETING, COMMUNICATION & PR
Jean-Christophe Eloy, Marketing &
Communication
eloy@yole.fr - +33 686 68 19 31
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sandrine.leroy@yole.fr - +33 4 72 83 01 89
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+ 1 310 600 8267
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+81 90 1775 3866
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II-VI/Finisar 100Gb CWDM4 Optical Transceiver

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