# PsiQuantum shows customers an optical switch prototype for AI data centers

_Published Wednesday, October 28, 2026 at 2:18 PM EDT · Infrastructure · Latest · Tier 2 — Notable_

![PsiQuantum shows customers an optical switch prototype for AI data centers — Primary](https://s.yimg.com/lo/mysterio/api/519769766e4c7e21f97483c66a12a9237ebfe357b24e3c34d20f67adfb78c72c/lightyear_networkapi/resizefill_w1200%3Bquality_80%3Bformat_webp/https%3A%2F%2Fmedia.zenfs.com%2Fen%2Fsemafor_310%2F3e94f251ff23091a2d9afb6602ace808.jpg)

PsiQuantum says it has been showing potential customers a prototype switch that routes light signals between GPUs without converting them into electrical signals, Yahoo reported. The device draws on optical chips developed for the company's quantum computing work.

Avoiding those conversions could reduce heat and energy use in data center networking. Executive vice president Robert Soderbery said the device could connect GPUs across separate server racks with the speed and latency of connections within one rack. Those benefits remain claims for a prototype.

## Sources

- [YAHOO!](https://tech.yahoo.com/ai/articles/quantum-computing-company-first-breakthrough-162608955.html)

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Canonical: https://techandbusiness.org/newswire/sIFN0-wnQd-a6O_nnL4gD4
Published: 2026-10-28T18:18:50.946Z
Story chronology: 2026-10-28T16:26:08.000Z
Retrieved: 2026-10-28T22:09:28.722Z
Publisher: Tech & Business (techandbusiness.org)