Laser Structured Optical Interposer for Ultra-dense Vertical Coupling of Multi-core Fibers to Silicon Photonic Chip

[2512.01972] Laser Structured Optical Interposer for Ultra-dense Vertical Coupling of Multi-core Fibers to Silicon Photonic Chip Skip to main content Search Submit Donate Log in Physics > Optics arXiv:2512.01972 (physics) [Submitted on 1 Dec 2025] Title: Laser Structured Optical Interposer for Ultra-dense Vertical Coupling of Multi-core Fibers to Silicon Photonic Chip Authors: Gligor Djogo , Amir Rahimnouri , Peter R Herman View PDF Abstract: Femtosecond laser writing in glass was harnessed to fabricate photonic circuits comprised of waveguides, micro-mirrors, and fiber sockets, in an optical interposer chip. The compact design enabled ultra-dense routing of 40 optical channels from six multi-core fibers, in a two-layer array, vertically coupling onto a 2D grid of silicon photonic grating couplers. Various photonic circuit designs were explored and tested, achieving an average single-pass insertion loss of 5.0 dB for the fully packaged system, with a minimum loss of 3.2 dB. The reasonably low loss and low-profile, compact package make such interposers an attractive option for densifying interconnects to address bottlenecks in optical networks, datacenters, and optical computing applications. Comments: 9 pages, 6 figures, 2 tables Subjects: Optics (physics.optics) ; Applied Physics (physics.app-ph) Cite as: arXiv:2512.01972 [physics.optics] (or arXiv:2512.01972v1 [physics.optics] for this version) https://doi.org/10.48550/arXiv.2512.01972 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.1109/JLT.2026.3720907 Focus to learn more DOI(s) linking to related resources Submission history From: Gligor Djogo [ view email ] [v1] Mon, 1 Dec 2025 18:27:52 UTC (968 KB) Full-text links: Access Paper: View PDF view license Current browse context: physics.optics < prev | next > new | recent | 2025-12 Change to browse by: physics physics.app-ph References & Citations SciX Google Scholar Semantic Scholar export BibTeX citation 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? ) 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? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

Related documents

• Laser Structured Optical Interposer for Ultra-dense Vertical Coupling of Multi-core Fibers to Silicon Photonic Chip#670435
• Optical crosstalk between SiPMs in dual-ended readout.#653588
• Integrated Optical/Body-Dynamics Simulations for Pointing, Acquisition and Tracking for the PULSE-A Mission#995726
• Processing Parameter-Performance Nexus in 3D Printing of Nanostructured Chiral Photonics#372569
• Artificial Anisotropy Induced Bound States in the Continuum for Integrated Photonic Waveguide#662174