Lumilens raises $700 million for optical interconnect technology for AI data centers

First recorded August 6, 2026 · Latest coverage August 6, 2026 · 1 source

The Wall Street Journal reports that Lumilens has raised $700 million in new funding at a $5.5 billion valuation. The company makes optical hardware designed to move data between AI servers faster by replacing or reducing conventional wired interconnects inside data centers.

Why it matters: Optical interconnects are an increasingly important part of AI infrastructure as model training and inference clusters grow in size and bandwidth demand. A large financing at a multibillion-dollar valuation signals strong investor conviction that networking and data-movement bottlenecks, not just chips, will be a major constraint and opportunity in scaling AI systems.

Sources

• Startup Raises $700 Million to Replace Data-Center Wires With Light WSJ · August 6, 2026