17h ago

Commentators debate whether Chinese manufacturers supplying Nvidia's 800G optical modules remain bottlenecked by US component intellectual property

Chinese suppliers provide 60 percent of Nvidia's 800G demand.

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Original post

> Although Chinese companies dominate the global AI data center optical module manufacturing, the most core DSP chips and EML (electro-absorption modulated lasers) inside optical modules are still mainly in the hands of Broadcom, Marvell, Lumentum, and Coherent. unsurvivable

7:13 PM · May 28, 2026 View on X

to be clear I'm kidding China controls very large parts of the relevant supply chains

Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)@teortaxesTex

> Although Chinese companies dominate the global AI data center optical module manufacturing, the most core DSP chips and EML (electro-absorption modulated lasers) inside optical modules are still mainly in the hands of Broadcom, Marvell, Lumentum, and Coherent. unsurvivable

2:13 AM · May 29, 2026 · 26.9K Views
4:42 AM · May 29, 2026 · 2K Views

Not true for EML DSPs are getting designed out to reduce power consumption across the industry (although Huawei has a pretty good DSP) Yuanjie has decent CW laser chips for CPO (only player in China)

Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)@teortaxesTex

> Although Chinese companies dominate the global AI data center optical module manufacturing, the most core DSP chips and EML (electro-absorption modulated lasers) inside optical modules are still mainly in the hands of Broadcom, Marvell, Lumentum, and Coherent. unsurvivable

2:13 AM · May 29, 2026 · 26.9K Views
2:42 AM · May 29, 2026 · 46.8K Views
ZephyrZephyr@zephyr_z9

Not true for EML DSPs are getting designed out to reduce power consumption across the industry (although Huawei has a pretty good DSP) Yuanjie has decent CW laser chips for CPO (only player in China)

2:42 AM · May 29, 2026 · 46.8K Views
3:01 AM · May 29, 2026 · 42.5K Views