Lumentum uses MOPA approach for Nvidia CPO lasers, single cavity delivering 400mW+
jwt0625 · x · 2026-09-08
- Per an ECTC 2026 paper on DWDM CW-DFB laser arrays for co-packaged optics, Lumentum is working with Nvidia using a MOPA (Master Oscillator Power Amplifier) approach: a single high-power cavity producing 400mW+.
- Competitors like Sumitomo take a different route: a lower-power CW DFB laser followed by an amplifier to boost output to 400mW+.
- This is part 3 of a series on UHP lasers for CPO, contrasting the two technical approaches.
Related event: CPO Laser Debate: MOPA Architecture vs Lumentum's Approach(2 posts)→
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