Technology, Process and Cost
Coherent - FTCD8613E1PCM 400G SR8 VCSEL Optical Transceiver
By Yole SystemPlus —
The latest generation of Coherent’s 400G multi-mode fiber optical transceiver
SPR23735
Overview / Introduction
- Executive Summary
- Reverse Costing Methodology
- Product Datasheet
- Market Analysis
- Glossary
Company Profile
Physical Analysis
- Summary of the Physical Analysis
- FTCD8613 Teardown
- Teardown
- Electronic Boards
- Components
- Module Cross Section
- Marvell IN015050 DSP
- Overview
- Die
- Cross Section
- Process Summary
- Coherent Photodiode
- Overview
- Cross Section
- Process Summary
- Coherent VCSEL
- Overview
- Cross-Section
- Process Summary
- Marvell IN2814 Laser Driver
- Marvell IN2865 TIA
Manufacturing Process Flow
- IN015050 Fab Unit
- IN015050 Process
- IN2865 Fab and Process
- IN2814 Fab and Process
- VCSEL Fab Units
- VCSEL Process
- PD Fab Units & Process
- Transceiver Assembly Fab Unit
- Transceiver Assembly Process
- Transceiver Final Test
Cost Analysis
- Main Steps of Analysis
- Yields Explanation & Hypotheses
- Marvell IN015050 IC Cost
- Marvell IN2865 IC Cost
- Marvell IN2814 IC Cost
- VCSEL Cost
- Photodiode Cost
- Completed Module Cost
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About Yole Group
This full reverse costing study was conducted to provide insight on the technology data, manufacturing cost, and selling price of Coherent’s 400G QSFP-DD VCSEL Optical Transceiver, with a focus on its VCSEL die.
- Coherent's 400G QSFP-DD is one of the first 400G optical transceivers on the market with a VCSEL die. It allows communication up to 100m in PSM4. Coherent’s solution is based on the Marvell / Inphi IN0155050 DSP for the processor of input and output data.
- The TIA die and the laser driver are from Marvell. The TIA dies are based on a SiGe BiCMOS technology.
- The light is generated by two VCSEL laser dies.
- All the other optical functions are performed by an On-Board Optical (OBO) connector.
- The discrete GaAs photodiode die are assembled on the PCB.
- The discrete GaAs photodiode, VCSEL laser, TIA die, and laser driver die are assembled on the copper inlay of the PCB.
- This report represents an exhaustive analysis of Coherent’s FTCD8613 optical transceiver, including a full analysis of the laser die, GaAs photodiode, TIA circuit, modulator laser driver circuit, and PAM4 DSP circuit, along with a cost analysis and price estimate. A complete physical analysis with SEM pictures, cross-sections, and EDX analysis to identify the material was also performed to show all the technical characteristics of the main component of the optical transceiver.
- This report furnishes an understanding of the technological choices of Coherent for its multimode optical transceiver.
The other parts, such as electronics, optics, and housing, are equally estimated, and more details on the optical parts and the assembly are described in our report. Lastly, a cost estimation for assembly of the electronics and the optics was performed.
- Coherent
- Finisar
- II-VI
- Marvell
- Inphi
- Tower Semiconductor
- GlobalFoundries
- TSMC
Key Features
- Detailed optical, X-ray, and SEM images
- Precise measurements
- Materials analysis
- Manufacturing process flow
- Supply chain evaluation
- Manufacturing cost analysis
- Estimated selling price
What's new
- First YSP report for this 400G MMF optical transceiver
- High-frequency VCSEL