Near-Infrared and Telecommunication-Wavelength Photon-Pair Source in Optical Fiber
Summarize this article with:
Quantum Physics arXiv:2602.15207 (quant-ph) [Submitted on 16 Feb 2026] Title:Near-Infrared and Telecommunication-Wavelength Photon-Pair Source in Optical Fiber Authors:Keshav Kapoor, Dong Beom Kim, Kriti Shetty, Virginia O. Lorenz View a PDF of the paper titled Near-Infrared and Telecommunication-Wavelength Photon-Pair Source in Optical Fiber, by Keshav Kapoor and 3 other authors View PDF HTML (experimental) Abstract:We present a photon-pair source in commercially available optical fiber that produces paired photons at telecommunication and near-infrared (NIR) wavelengths. The highly nondegenerate pairs are 700 nm apart: one in the 1500 nm E- and S-band telecommunication range and the other in the 830 nm NIR range. The high non-degeneracy means the photon pairs are far-detuned from Raman noise, resulting in a high coincidence-to-accidental ratio even while operating at room temperature. The source produces two spectrally and spatially distinct phase-matched processes with low spectral cross-talk, distinct transverse spatial modes in the NIR, and a single fundamental spatial mode in the telecommunication range. The source's room-temperature operation, off-the-shelf materials, and multiplexing potential make it promising for deployment in quantum networks. Subjects: Quantum Physics (quant-ph); Optics (physics.optics) Cite as: arXiv:2602.15207 [quant-ph] (or arXiv:2602.15207v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2602.15207 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Keshav Kapoor [view email] [v1] Mon, 16 Feb 2026 21:36:46 UTC (1,982 KB) Full-text links: Access Paper: View a PDF of the paper titled Near-Infrared and Telecommunication-Wavelength Photon-Pair Source in Optical Fiber, by Keshav Kapoor and 3 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-02 Change to browse by: physics physics.optics References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)