Terabit BiDi MSA Targets 800G, 1.6T Over Data Center Multimode Fiber

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The new Terabit Bidirectional (BiDi) Multi-Source Agreement (MSA) group has revealed its intention to collaborate on the development of 800 Gbps and 1.6 Tbps interoperable optical interface specifications for parallel multimode fiber (MMF) links in data centers. Specifications will be based on 100 Gbps VCSEL technology.

II-VI, Alibaba, Arista Networks, Broadcom, Cisco, CommScope, Dell Technologies, HGGenuine, Lumentum, MACOM and Marvell Technology are founding members of the Terabit BiDi MSA. They intend to build on the installed base of four-pair parallel MMF links to enable an upgrade from the parallel MMF-based 400 Gbps BiDi to 800 Gbps and 1.6 Tbps. The MSA says its specifications will target data center MMF connectivity needs between switches and across server-to-switch interconnects. If the MSA achieves its goals, the same parallel fiber infrastructure will be able to support data rates from 40 Gbps to 1.6 Tbps, the members believe.

“As the industry transitions to 100 Gbps per lane signaling on high-density 25.6 Tbps switches and future 51.2 Tbps switches, the market needs to increase interface using VCSEL-based technology to achieve faster and more cost-effective interfaces,” Tzu said. Hao Chow, co-chairman of the MSA.

“We will leverage previous industry specifications and work on both 100 Gbps VCSEL technology and BiDi MMF technology in the development of these specifications,” added MSA co-chair David Piehler.

Additional information about the Terabit BiDi MSA is available at terabit-bidi-msa.com.

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