{
  "abstract": "Free-space optical interconnects can support many low-data-rate channels while avoiding the cost, energy consumption, and packaging constraints of optical waveguide- or fiber-based systems that are widely used today. We propose a free-space optical interconnect system based on reconfigurable micromirror arrays, and show that it scales favorably due to its two-dimensional scaling. We discuss the channel count scaling model, compare our demonstration with theory, and project a channel count above 10,000 to achieve 100 Tbps with slow channels (e.g., <10 Gbps). In a proof-of-concept system with a piston-motion micromirror array, we demonstrate nine channels that are simultaneously optimized. The optimization enables -21.7 dB of average worst-case crosstalk for a channel pitch equal to twice the beam radius, a smaller channel spacing than that required in flat tip-tilt mirrors. The optimization flow is further investigated for different channel spacings, simultaneous illumination, and different numbers of outputs, which generally achieve smaller worst-case crosstalk than the flat tip-tilt mirror case. Overall, the work demonstrates the advantage of piston-motion micromirrors in the proposed optical interconnects.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30757",
  "author_total": 5,
  "authors": [
    {
      "name": "Jaekwon Lee"
    },
    {
      "name": "Carson G. Valdez"
    },
    {
      "name": "Anne R. Kroo"
    },
    {
      "name": "David A. B. Miller"
    },
    {
      "name": "Olav Solgaard"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aq6cmq9f3vxbk.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30757",
  "fulltext_url": null,
  "id": "aq6cmq9f3vxbk",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30757",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2208|Semiconductor Lasers and Optical Devices"
    ]
  ],
  "openalex": "W7223396092",
  "pdf_url": "https://arxiv.org/pdf/2610.30757",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/aq6cmq9f3vxbk.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.30757",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30757"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Reconfigurable Free-Space Optical Interconnects",
  "title_text": "Reconfigurable Free-Space Optical Interconnects",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/aq6cmq9f3vxbk",
  "venue": "arXiv",
  "versions": []
}