Photon Bridge Raises €10M to Build Semiconductor Lasers for AI Data Centers; Watchtower Labs Secures $35M Seed for AI Military Logistics

Three startups landed VC rounds: Photon Bridge raised €10 million to build semiconductor lasers for AI data‑center optical interconnects with product samples due in 2027, and Watchtower Labs emerged from stealth with $35 million to commercialize AI simulation and optimisation software for military logistics; other deals were also reported.