Spatiotemporal Topological Combs for Robust High-Dimensional Information Transmission

Spatiotemporal Topological Combs for Robust High-Dimensional Information Transmission | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Spatiotemporal Topological Combs for Robust High-Dimensional Information Transmission Guangyu Fan, Dawei Liu, Daijun Luo, Hui-Ming Wang, Xingyuan Zhang, and 6 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7655686/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Time-varying orbital angular momentum (OAM) beams are fascinating due to their rich physics and essentially unbounded degrees of freedom. Yet, despite this promise, their practical use in high-capacity communication has not been demonstrated. We introduce a spatiotemporal topological comb (ST-Comb) as a new information carrier, leveraging both the temporal and topological structure of light. By encoding data on terahertz-rate optical burst carriers, our scheme shifts the signal beyond the conventional noise band, achieving lock-inlike robustness. A programmable all-degree-of-freedom (All-DoF) modulator generates ST-Combs that populate a vast, high-entropy state space for highdimensional information encoding. Combined with a self-reference GuideStar mechanism, our approach provides near-perfect common-mode noise cancellation, enabling virtually loss-free information recovery. Experimentally, we demonstrate a record information density of 154 bits per wavepacket with 100% fidelity, maintained in outdoor free-space links. These results chart a path to chip-scale, reconfigurable photonics for the petahertz era, opening opportunities for high-capacity optical interconnects in AI data centers and expanding the boundaries of light–matter interactions. Physical sciences/Optics and photonics/Optical physics Physical sciences/Physics/Optical physics Full Text Additional Declarations There is NO Competing Interest. Supplementary Files Supplementary.pdf Spatiotemporal Topological Combs for Robust High-Dimensional Information Transmission Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7655686","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":550719698,"identity":"c2fbc556-d082-49c8-a04d-49a7c3bb7245","order_by":0,"name":"Guangyu 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