--- title: PsiQuantum Unveils Optical Circuit Switch for AI Data... description: PsiQuantum has unveiled an 8x8 optical circuit switching demonstration vehicle built on its low-loss silicon photonics platform, originally developed for... canonical: https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: PsiQuantum Unveils Optical Circuit Switch for AI Data Centers | daily.dev og:description: PsiQuantum has unveiled an 8x8 optical circuit switching demonstration vehicle built on its low-loss silicon photonics platform, originally developed for... og:url: https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow og:image: https://api.daily.dev/og/posts/hqQGuRzoW.png og:image:alt: PsiQuantum Unveils Optical Circuit Switch for AI Data Centers og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # PsiQuantum Unveils Optical Circuit Switch for AI Data Centers **[The Quantum Insider](https://daily.dev/sources/thequantuminsider)** · 4 min read · 0 upvotes · 0 comments ## Summary PsiQuantum has unveiled an 8x8 optical circuit switching demonstration vehicle built on its low-loss silicon photonics platform, originally developed for quantum computing. Company testing reported typical results of 1.2 dB insertion loss, 40 dB crosstalk performance, and less than 3 milliseconds of reconfiguration time, all without amplification. PsiQuantum is sharing demonstration samples with select prospective customers and will announce commercial products for AI data center connectivity in the coming months. The company also uses a 64x64 barium titanate switch in its quantum systems, though that is not required for this initial demonstration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What performance did PsiQuantum's new optical circuit switch achieve in testing? PsiQuantum's 8x8 optical circuit switching demonstration vehicle achieved 1.2 dB of insertion loss, 40 dB of crosstalk performance, and less than 3 milliseconds of reconfiguration time in lab testing. These results were achieved without optical amplification and exceeded the company's initial performance targets for the devices. _Anyone tracking optical interconnects for AI infrastructure can follow switch benchmarks like these on daily.dev._ ### Is PsiQuantum's optical switch technology originally from its quantum computing work? Yes, PsiQuantum's optical circuit switch is built on the same low-loss silicon photonics platform the company spent nearly a decade developing for utility-scale, fault-tolerant quantum computing. The company is now repurposing that platform for AI data center connectivity, sharing demonstration samples with select prospective customers ahead of planned commercial products. _Developers weighing how quantum research spills into mainstream infrastructure can track moves like this on daily.dev._ ## Similar posts on daily.dev - [The switch that quantum networking has been waiting for](https://daily.dev/posts/the-switch-that-quantum-networking-has-been-waiting-for-n5tx4eqth) · Cisco · 0 upvotes · 0 comments - [PsiQuantum has a plan to make a massive quantum computer out of light](https://daily.dev/posts/psiquantum-has-a-plan-to-make-a-massive-quantum-computer-out-of-light-z3vvzaly3) · MIT Technology Review · 1 upvotes · 0 comments --- Tags: [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"PsiQuantum Unveils Optical Circuit Switch for AI Data Centers","url":"https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow"},"datePublished":"2026-10-28T17:10:42.335Z","dateModified":"2026-10-28T17:22:24.332Z","description":"PsiQuantum has unveiled an 8x8 optical circuit switching demonstration vehicle built on its low-loss silicon photonics platform, originally developed for...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9dfc6b0a08fb50b075f9ca3b1b7b5f01?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9dfc6b0a08fb50b075f9ca3b1b7b5f01?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Quantum Insider","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Quantum Insider","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/7b14a6b34c1b464c9e8a88d9a0dac951","url":"https://daily.dev/sources/thequantuminsider"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"quantum-computing","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Quantum Insider","item":"https://daily.dev/sources/thequantuminsider"},{"@type":"ListItem","position":3,"name":"PsiQuantum Unveils Optical Circuit Switch for AI Data Centers"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/psiquantum-unveils-optical-circuit-switch-for-ai-data-centers-hqqgurzow#faq","mainEntity":[{"@type":"Question","name":"What performance did PsiQuantum's new optical circuit switch achieve in testing?","acceptedAnswer":{"@type":"Answer","text":"PsiQuantum's 8x8 optical circuit switching demonstration vehicle achieved 1.2 dB of insertion loss, 40 dB of crosstalk performance, and less than 3 milliseconds of reconfiguration time in lab testing. These results were achieved without optical amplification and exceeded the company's initial performance targets for the devices. Anyone tracking optical interconnects for AI infrastructure can follow switch benchmarks like these on daily.dev."}},{"@type":"Question","name":"Is PsiQuantum's optical switch technology originally from its quantum computing work?","acceptedAnswer":{"@type":"Answer","text":"Yes, PsiQuantum's optical circuit switch is built on the same low-loss silicon photonics platform the company spent nearly a decade developing for utility-scale, fault-tolerant quantum computing. The company is now repurposing that platform for AI data center connectivity, sharing demonstration samples with select prospective customers ahead of planned commercial products. Developers weighing how quantum research spills into mainstream infrastructure can track moves like this on daily.dev."}}]} ```