Lightspring raises €3.5M seed to tackle photonic chip manufacturing bottlenecks. The French startup's round was led by Atlantic and OVNI Capital, with participation from Concept Ventures, Ixcore, and Plug and Play Ventures. Photonic chips are critical for scaling energy-efficient AI compute, but production complexity has limited widespread adoption, making manufacturing tooling a high-leverage bottleneck for the industry.
Opening Kapyn…