{
  "annotation_id": "a5902d01-7222-4c30-a343-c3f7a070b6ea",
  "date_created": "2026-03-02T18:02:06.925000Z",
  "date_modified": "2026-03-02T18:02:06.925000Z",
  "file_hash": "b7bbf915f1c18e177323c74222081a01cadfe2febfd3ed62048437b76995df74",
  "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 1550nm band of\nstandard fiber-optic telecommunications. Polarization entanglement is created\nby pumping a nonlinear-fiber Sagnac interferometer with two time-delayed\northogonally-polarized pump pulses and subsequently removing the time\ndistinguishability by passing the parametrically scattered signal-idler photon\npairs through a piece of birefringent fiber. Coincidence detection of the\nsignal-idler photons yields biphoton interference with visibility greater than\n90%, while no interference is observed in direct detection of either the signal\nor the idler photons. All four Bell states can be prepared with our setup and\nwe demonstrate violations of CHSH form of Bell\u0027s inequalities by up to 10\nstandard deviations of measurement uncertainty.",
    "arxiv_id": "quant-ph/0402191",
    "authors": [
      "Xiaoying Li",
      "Paul L. Voss",
      "Jay E. Sharping",
      "Prem Kumar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.053601",
    "journal_ref": "Phy. Rev. Lett. vol. 94, 053601 (2005)",
    "title": "Optical-fiber source of polarization-entangled photon pairs in the   1550nm telecom band",
    "url": "https://arxiv.org/abs/quant-ph/0402191"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "31b17406-d02a-4830-8579-0658d546a4bf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}