{
  "annotation_id": "0e65857b-5502-4a2f-96de-8b505bb60f09",
  "date_created": "2026-03-02T18:02:19.968000Z",
  "date_modified": "2026-03-02T18:02:19.968000Z",
  "file_hash": "717a38e01aa11aa537800473ae93e32eaf1fd5affdc50b134d006d44c1c3b91e",
  "private": false,
  "record": {
    "abstract": "We report on the generation of photon pairs in the 1550-nm band suitable for\nlong-distance fiber-optic quantum key distribution. The photon pairs were\ngenerated in a periodically poled lithium niobate waveguide with a high\nconversion-efficiency. Using a pulsed semiconductor laser with a pulse rate of\n800 kHz and a maximum average pump power of 50 muW, we obtained a coincidence\nrate of 600 s^-1. Our measurements are in agreement with a Poissonian\nphoton-pair distribution, as is expected from a comparison of the coherence\ntime of the pump and of the detected photons. An average of 0.9 photon pairs\nper pulse was obtained.",
    "arxiv_id": "quant-ph/0509186",
    "authors": [
      "Shigehiko Mori",
      "Jonas Soderholm",
      "Naoto Namekata",
      "Shuichiro Inoue"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.optcom.2006.02.010",
    "journal_ref": "Opt. Commun. 264 (2006) 156-162",
    "title": "On the distribution of 1550-nm photon pairs efficiently generated using   a periodically poled lithium niobate waveguide",
    "url": "https://arxiv.org/abs/quant-ph/0509186"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8839beb8-f6b7-4e75-a881-834404d1e55e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}