The 400G BiDi transceiver offers many advantages compared to alternative solutions, including:
- Extended use of installed MPO MMF cabling to support the transition to 400 GbE: An upgrade path for millions of 100G QSFP28 SR4 MMF transceivers deployed in the field to FIT's new 400G BiDi QSFP28 transceiver. 400G BiDi enables customers to reduce their Capex and Opex costs when they transition to 400G by utilizing existing MMF cable infrastructure.
- Endorsed by Major OEM's: 40G BiDi QSFP+ and 100G BiDi QSPF28 transceivers have already been widely adopted in the industry.
- Lower Cost Solution: 40G BiDi, 100G BiDi and 400G BiDi efficiently use 2 VCSEL wavelengths (850nm and 910nm) per link, instead of more complex and costly solutions using 4 VCSEL wavelengths (850 – 950nm range). This enables customers to use existing MMF cable infrastructure.
- Fully Compliant to IEC 60793-2 Effective Modal Bandwidth (EMB) specifications: Alternate solutions with 4 VCSEL wavelengths will require fiber infrastructure with a higher EMB
- 4x100 Gbps breakout capability: 400G BiDi can be operated in either an aggregate point to point mode or a breakout mode. In the 4x100 Gbps breakout mode, the 400G BiDi will interoperate with 100G BiDi solutions allowing backward compatibility to 100 Gbps network applications
The 400G BiDi transceiver solution is based on Broadcom's industry leading optical ICs and components including 400G 8:8 PAM-4 PHY and an array of 4x50G VCSEL and PIN photodetector components plus complementary 4x50G transimpedance amplifier (TIA) and laser driver ICs. The solution delivers unprecedented performance and power efficiency enabling high volume deployment of 400 GbE MMF links for datacenter and cloud networks.
The 400G BiDi MSA was formed in June 2018 to promote the adoption of 400 Gbps optical transceivers for 100m link distance based on a dual wavelength transmission technology targeted for multi-mode fiber (MMF). The solution leverages both widely adopted 40 Gbps and 100 Gbps Ethernet BiDi solutions and is compatible with the 8-fiber MMF ribbon infrastructure widely available and deployed. The IEEE 802.3cm task force will formalize 400G BiDi specifications in an industry standard specification.
"The 2 million 40G and 100G BiDi transceivers we have shipped to date demonstrate the success and market acceptance of these optical solutions enabling customers to realize further cost savings by reusing their existing OM3 and OM4 MMF cable infrastructures. The new 400G BiDi transceiver module leverages proven FIT BiDi technology and builds upon that success story by offering a higher speed product for link distances below 100 meters for hyperscale data centers, enterprise, and fabric interconnects of 5G wireless infrastructures," said Adam Carter, Chief Commercial Officer in FIT's Fiber Optics Communications Business.
"Broadcom is the industry leader in providing highly differentiated and cost-effective optical III-V and IC component solutions for 400G BiDi transceivers," said Mitch Fields, Vice President and General Manager of the Fiber Optics Product Division at Broadcom. "As a pioneer of BiDi optical technology, we are excited to have collaborated with FIT to demonstrate the next generation 400G BiDi solution."
For more information, visit https://www.foit-foxconn.com/ or follow on Twitter at @FITOptics.
About Foxconn Interconnect Technology
Foxconn Interconnect Technology Limited ("FIT") focuses on the development, manufacturing and marketing of electronic and optoelectronic connectors, antennas, acoustic components, cables and modules for applications in computers, communication equipment, consumer electronics, automobiles, industrial and green energy field products. The FIT Optics division (FOIT), is responsible for the commercial development and production of high speed fiber optic transceivers and solutions.
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