Nvidia’s spending $4 billion on photonics to stay ahead of the curve in AI
Source: The Verge
Nvidia’s $4 Billion Investment in Photonics
Nvidia announced on Monday that it is investing $2 billion each into Lumentum and Coherent. Both companies are developing photonics technology for data centers—optical transceivers, circuit switches, and lasers—that move data at high speeds over long distances. The technology could improve energy efficiency, data‑transfer speeds, and bandwidth in future AI data centers, building on Nvidia’s 2020 acquisition of the network‑hardware company Mellanox, which bolstered NVLink and increased data flow between GPUs.
Investment Details
- Lumentum: A non‑exclusive multiyear deal that includes a multibillion‑dollar purchase commitment and future capacity‑access rights for advanced laser components, along with support for expanding R&D and manufacturing.
- Coherent: A similarly structured agreement featuring a multibillion‑dollar purchase commitment and future access and capacity rights for advanced laser and optical networking products.
Why Photonics Matters for AI
The rise of agentic AI—such as Anthropic’s Claude Cowork and Microsoft’s Copilot Tasks—is driving up bandwidth demands in AI data centers. Photonics could offer a solution: optical fibers support significantly higher bandwidth and lower latency than copper cables while consuming less power. See the discussion on photonics as the next AI bottleneck in Tom’s Hardware.
Industry Context
Nvidia is not alone in focusing on photonics:
- DARPA recently issued a call for research proposals to improve photonic computing for AI applications (The Register, Feb 2026).
- AMD acquired silicon‑photonics startup Enosemi last year, aiming to accelerate optics innovation for its AI systems.