{
  "annotation_id": "a52dbb1c-f0f2-45ca-b49a-0fa0163fb94e",
  "date_created": "2026-03-02T18:01:52.415000Z",
  "date_modified": "2026-03-02T18:01:52.415000Z",
  "file_hash": "77f5eadf04c2022ec502e2a1be661b6f6933ff9ac6157a8f7d47a8dde15fbb26",
  "private": false,
  "record": {
    "abstract": "We present a fiber-based source of polarization-entangled photon pairs that\nis well suited for quantum communication applications in the 1.5$\\mu$m band of\nstandard telecommunication fiber. Quantum-correlated signal and idler photon\npairs are produced when a nonlinear-fiber Sagnac interferometer is pumped in\nthe anomalous-dispersion region of the fiber. Recently, we have demonstrated\nnonclassical properties of such photon pairs by using Geiger-mode InGaAs/InP\navalanche photodiodes. Polarization entanglement in the photon pairs can be\ncreated by pumping the Sagnac interferometer with two orthogonally polarized\npulses. In this case the parametrically scattered signal-idler photons yield\nbiphoton interference with $\u003e$90% visibility in coincidence detection, while no\ninterference is observed in direct detection of either the signal or the idler\nphotons.",
    "arxiv_id": "quant-ph/0209112",
    "authors": [
      "P. Kumar",
      "X. Li",
      "M. Fiorentino",
      "P. L. Voss",
      "J. E. Sharping",
      "G. A. Barbosa"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Fiber-Optic Sources of Quantum Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0209112"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5a3a521f-1214-40d2-9cde-158950ea0805",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}