{
  "abstract": "Dual-comb spectroscopy (DCS) enables rapid, broadband and high-resolution optical measurements by mapping optical spectra into the radio frequency (RF) domain. However, conventional DCS systems are fundamentally constrained by a tradeoff between optical bandwidth and interferogram acquisition speed, limiting their overall performance. Here, we demonstrate an all-fiber, polarization-maintaining (PM) frequency-agile electro-optic modulation (EOM) dual-comb source that simultaneously achieves a broad optical bandwidth of 10 THz and a high interferogram acquisition speed of up to 2.5 MHz. The high acquisition rate is enabled through an in-phase/quadrature (IQ) modulator-based architecture to shift the carrier frequency of one of the combs. We illustrate the performance of the source through proof-of-concept linear spectroscopy and nonlinear dual-comb coherent anti-Stokes Raman scattering (CARS) spectroscopy measurements. The combination of large spectral coverage, high refresh rate and an all-PM fiber configuration makes this dual-comb platform attractive for applications such as rapid molecular spectroscopy and high-speed nonlinear spectroscopic imaging.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.08416",
  "author_total": 5,
  "authors": [
    {
      "name": "Debanuj Chatterjee"
    },
    {
      "name": "Fabio Motetta"
    },
    {
      "name": "Simon Boivinet"
    },
    {
      "name": "Hervé Rigneault"
    },
    {
      "name": "Arnaud Mussot"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7gsa3f3saspsq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.08416",
  "fulltext_url": null,
  "id": "7gsa3f3saspsq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.08416",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Advanced Fiber Laser Technologies"
    ]
  ],
  "openalex": "W7212079991",
  "pdf_url": "https://arxiv.org/pdf/2609.08416",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7gsa3f3saspsq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:49Z",
      "native_id": "2609.08416",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.08416"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Fiber-based electro-optic dual-comb light source for fast linear and nonlinear spectroscopy",
  "title_text": "Fiber-based electro-optic dual-comb light source for fast linear and nonlinear spectroscopy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:49Z",
  "url": "https://research.draconitic.com/paper/7gsa3f3saspsq",
  "venue": "arXiv",
  "versions": []
}