PsiQuantum has unveiled an 8×8-radix Optical Circuit Switching (OCS) demonstration vehicle for AI infrastructure, built on its low-loss silicon photonics platform. Testing in the company's labs showed typical insertion loss of 1.2 dB.
PsiQuantum said AI systems are scaling faster than computing infrastructure, placing growing demands on the networks connecting increasingly large pools of compute. It said the efficient movement of data between these systems is becoming a fundamental constraint on continued AI scaling, with the computing industry increasingly turning to optics for faster, more efficient and scalable connectivity.
The demonstration vehicle is the company's first publicly disclosed OCS technology and uses a silicon photonics platform developed over nearly a decade for utility-scale quantum computing. Lab testing showed typical results of 1.2 dB of insertion loss, 40 dB cross talk and less than 3 ms of reconfiguration time. PsiQuantum said the results exceeded initial targets and were achieved without amplification.
PsiQuantum has also developed barium titanate (BTO) integration at the 300mm wafer scale and uses a 64×64 BTO switch in its quantum systems. BTO is not required for the demonstration vehicle or the initial products, the company said, leaving it as a path to faster, more advanced future products.
Victor Peng, chief executive officer of PsiQuantum, said: “This opportunity exists because we chose to solve the hardest scaling problems at the beginning of our roadmap to utility-scale quantum computing. As AI computing pushes infrastructure to its limits, we now have an opportunity to put our state-of-the-art technology to work today while continuing toward our ultimate goal: building and deploying the world's first useful, fault-tolerant quantum computers.”
PsiQuantum is sharing samples of the demonstration vehicle with select prospective customers and advancing the platform toward commercial products it said it will announce in the coming months.
