• •Aylight raised €4.5 million in pre-seed funding co-led by Elaia and Swisscom Ventures.
• •The capital is designated for scaling the company's multiwavelength laser technology designed for optical interconnects.
• •The transition from laboratory-scale photonics to mass-market semiconductor manufacturing remains the primary hurdle for the company.

Swiss photonics startup Aylight has closed a €4.5 million pre-seed funding round led by Elaia and Swisscom Ventures to advance its chip-scale multiwavelength laser technology. This investment follows a broader industry push to resolve data center bottlenecks through optical interconnects, which aim to replace electrical wiring for faster chip-to-chip communication. However, the company faces the significant challenge of achieving cost-effective high-volume production, a barrier that has slowed similar optical hardware startups in the past. Whether Aylight can successfully integrate its lasers into standard semiconductor manufacturing processes will determine if it can compete with established giants currently dominating the space.