# PsiQuantum samples an 8x8 optical switch for AI networks, reporting 1.2 dB loss > Source: > Published: 2026-10-30 14:51:33+00:00 # PsiQuantum samples an 8x8 optical switch for AI networks, reporting 1.2 dB loss **Co-founded by Jeremy O'Brien, PsiQuantum unveiled the demonstration switch on October 28th and reported typical insertion loss of 1.2 dB in its own lab tests.** By [RuntimeWire Staff](https://runtimewire.com/author/runtimewire-staff) · Published Primary source: [Tom's Hardware](https://www.tomshardware.com/tech-industry/photonics/psiquantum-turns-its-photonics-know-how-into-an-optical-switch-for-supercharging-ai-data-center-gpu-networks-8x8-lab-prototype-loses-less-light-than-rivals-with-plans-to-develop-larger-devices) ## Why it matters AI clusters are limited by how fast GPUs can exchange data, and every optical hop that leaks light or converts signals costs power and reach. PsiQuantum's low-loss platform, built for fault-tolerant quantum computers, could give it an edge in optical circuit switching if the advantage survives the move from 8 ports to 64 and beyond. The launch also gives the quantum company a nearer-term market to court and a manufacturing supply chain to harden before its quantum machines arrive. PsiQuantum co-founder Jeremy O'Brien built the business around the thesis that useful quantum computing would require semiconductor-scale manufacturing. PsiQuantum is applying the resulting low-loss photonics platform to optical switching for AI data centers.… When you purchase through links in our articles, [we may earn a small commission](https://runtimewire.com/affiliate-monetization-standards). This doesn’t affect our editorial independence.