{
  "abstract": "We report a fibre-integrated heralded single-photon source based on a commercial Zn-indiffused MgO:PPLN ridge waveguide operated in Type-0 degenerate spontaneous parametric down-conversion (SPDC). The device emits a broadband spectrum spanning approximately 70 nm across the telecom C-and L-bands, with an absolute brightness of $9.1\\times 10^{9}$ pairs/(s mW). After accounting for optical losses, we determine an internal heralding efficiency of 58(5)%. The source maintains high purity, exhibiting a coincidences-to-accidentals ratio exceeding $9\\times 10^{4}$ and a heralded second-order correlation of $g_{\\text{h}}^{(2)}(0) = (5.53 \\pm 0.46)\\times 10^{-4}$. Low multi-photon noise and broadband emission demonstrate the viability of such platforms for wavelength-multiplexed quantum networking.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Opt. Continuum 5, 3079-3090 (2026)",
  "arxiv": "2607.13215",
  "author_total": 10,
  "authors": [
    {
      "name": "Peter Iveson"
    },
    {
      "name": "Paolo L. Mennea"
    },
    {
      "name": "Goronwy Tawy"
    },
    {
      "name": "Rex H. S. Bannerman"
    },
    {
      "name": "Noe Palomar-Davidson"
    },
    {
      "name": "Lewis D. Wright"
    },
    {
      "name": "Patrick M. Ledingham"
    },
    {
      "name": "Peter G. R. Smith"
    },
    {
      "name": "James C. Gates"
    },
    {
      "name": "Corin B. E. Gawith"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5rensdra11c2w.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.13215",
  "fulltext_url": null,
  "id": "5rensdra11c2w",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.13215",
  "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",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.13215",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5rensdra11c2w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2607.13215",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.13215"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "A Fibre-Integrated SPDC Heralded Single-Photon Source Using Zn-Indiffused PPLN Ridge Waveguides at Telecom Wavelengths",
  "title_text": "A Fibre-Integrated SPDC Heralded Single-Photon Source Using Zn-Indiffused PPLN Ridge Waveguides at Telecom Wavelengths",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:01Z",
  "url": "https://research.draconitic.com/paper/5rensdra11c2w",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1364/optcon.610283",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}