PsiQuantum samples an 8x8 optical switch for AI networks, reporting 1.2 dB loss

PsiQuantum, co-founded by Jeremy O'Brien, unveiled an 8x8 optical switch for AI data-center GPU networks on October 28, reporting typical insertion loss of 1.2 dB in its own lab tests. PsiQuantum is repurposing the low-loss photonics platform it built for fault-tolerant quantum computers, and the company plans to develop larger devices beyond 8 ports. The result matters because AI clusters are limited by how fast GPUs exchange data, and lower optical loss could reduce power and extend reach if the advantage holds at 64 ports and beyond.

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.