{
  "abstract": "We investigate rotation-induced phase accumulation of structured light in a mechanically rotating uniform helical optical fiber using a four-component optical Dirac-like equation. In the paraxial and weak-geometry regime, the intrinsic dynamics contain a torsion-induced geometric coupling and a mechanical rotation--angular-momentum coupling. We show that, in a common-path mirror-reflection geometry, both the torsion-induced geometric phase and the conventional area-dependent Sagnac contribution cancel over a complete round trip, whereas the intrinsic rotation--angular-momentum phase survives. The surviving phase depends on the intrinsic total angular momentum of the structured optical mode and provides a common-path interferometric route for probing intrinsic angular momentum effects in rotational sensing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30898",
  "author_total": 3,
  "authors": [
    {
      "name": "Lili Yang"
    },
    {
      "name": "Pengming Zhang"
    },
    {
      "name": "Longlong Feng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b9tqvpazaxswk.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30898",
  "fulltext_url": null,
  "id": "b9tqvpazaxswk",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30898",
  "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",
      "3107|Orbital Angular Momentum in Optics"
    ]
  ],
  "openalex": "W7223368300",
  "pdf_url": "https://arxiv.org/pdf/2610.30898",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b9tqvpazaxswk.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.30898",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30898"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Intrinsic Angular Momentum Contribution to the Sagnac Response of a Rotating Helical Optical Fiber",
  "title_text": "Intrinsic Angular Momentum Contribution to the Sagnac Response of a Rotating Helical Optical Fiber",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/b9tqvpazaxswk",
  "venue": "arXiv",
  "versions": []
}