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Google's coherent-lite optics near volume adoption for TPUv9

By PulseAugur Editorial · [2 sources] ·

Coherent-lite transceiver technology, first presented by Google in 2021, is nearing volume adoption for Google's TPUv9 scale-up network. While co-packaged optics (CPO) are expected to be the future of optical bandwidth scaling, they face integration and maturity challenges before widespread use. In the interim, coherent-lite offers advantages like longer reach and reduced fiber count, making it a practical solution for intra-datacenter interconnects. AI

IMPACT Accelerates high-bandwidth networking for AI hardware, enabling larger-scale AI model training and inference.

RANK_REASON Significant industry move regarding optical transceiver technology for AI hardware scale-up.

Read on X — SemiAnalysis →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Google's coherent-lite optics near volume adoption for TPUv9

COVERAGE [2]

  1. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    The bottom line is this: even though we expect co-packaged optics (CPO) to eventually be the go-to bandwidth scaling solution for optics, scale-up CPO will have

    The bottom line is this: even though we expect co-packaged optics (CPO) to eventually be the go-to bandwidth scaling solution for optics, scale-up CPO will have to work through the integration, yield, and ecosystem maturity curve before it is ready for volume manufacturing and

  2. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    The coherent-lite transceiver technology was presented by Google in 2021 for an IEEE meeting as an alternative to the shorter-reach, traditional CWDM4 IM-DD tra

    The coherent-lite transceiver technology was presented by Google in 2021 for an IEEE meeting as an alternative to the shorter-reach, traditional CWDM4 IM-DD transceiver, and we are finally expecting to see volume adoption at Google. As flagged in May to our institutional clients,…

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