{
  "abstract": "We experimentally demonstrate a 100-m long fiber Sagnac gyroscope employing imaginary weak-value amplification (IWVA) to enhance the optical readout response to rotation. A Sagnac-induced polarization phase is converted into a measurable spectral response through polarization post-selection and spectrally resolved detection. By varying the post-selection angle, we characterize the gyroscope response over the experimentally accessible rotation-rate range. The response increases systematically toward orthogonal post-selection, yielding a maximum experimental enhancement of approximately 13 times relative to a fixed reference configuration without postselection. Fast Fourier transform and Allan-deviation measurements further characterize the noise and stability of the gyroscope. Near-orthogonal post-selection reduces the equivalent rotation-rate fluctuations, with the minimum Allan deviation decreasing from $0.06~\\mathrm{rad/s}$ for the reference configuration to $0.0091~\\mathrm{rad/s}$ for the configuration exhibiting the maximum response enhancement, corresponding to an approximately 6.6-fold reduction. Low-frequency fluctuations of the broadband superluminescent diode source limit the long-term stability. These results demonstrate that IWVA provides a practical approach for response-enhanced fiber-based Sagnac gyroscopy and precision rotation sensing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.00481",
  "author_total": 6,
  "authors": [
    {
      "name": "Jing-Hui Huang"
    },
    {
      "name": "Hong-Liang Cui"
    },
    {
      "name": "Tianying Chang"
    },
    {
      "name": "Jing Zhang"
    },
    {
      "name": "TianYe Huang"
    },
    {
      "name": "Xiang-Yun Hu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/azdj8pxffsm1n.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.00481",
  "fulltext_url": null,
  "id": "azdj8pxffsm1n",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.00481",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2611.00481",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/azdj8pxffsm1n.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.00481",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.00481"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Experimental demonstration of response-enhanced fiber Sagnac gyroscopy via imaginary weak-value amplification",
  "title_text": "Experimental demonstration of response-enhanced fiber Sagnac gyroscopy via imaginary weak-value amplification",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:18Z",
  "url": "https://research.draconitic.com/paper/azdj8pxffsm1n",
  "venue": "arXiv",
  "versions": []
}