{
  "annotation_id": "4198734d-003d-4dd6-8a5d-1b3ab4687a1b",
  "date_created": "2026-03-02T18:02:23.431000Z",
  "date_modified": "2026-03-02T18:02:23.431000Z",
  "file_hash": "4e289ccc6f371df6c97c06b12451f9e76ee6a9ab1fe67a7f65f40eaa3a2c66c8",
  "private": false,
  "record": {
    "abstract": "We explore the feasibility of using high conversion-efficiency\nperiodically-poled crystals to produce photon pairs for photon-counting\ndetector calibrations at 1550 nm. The goal is the development of an appropriate\nparametric down-conversion (PDC) source at telecom wavelengths meeting the\nrequirements of high-efficiency pair production and collection in single\nspectral and spatial modes (single-mode fibers). We propose a protocol to\noptimize the photon collection, noise levels and the uncertainty evaluation.\nThis study ties together the results of our efforts to model the single-mode\nheralding efficiency of a two-photon PDC source and to estimate the heralding\nuncertainty of such a source.",
    "arxiv_id": "quant-ph/0601067",
    "authors": [
      "S. Castelletto",
      "I. P. Degiovanni",
      "V. Schettini",
      "A. Migdall"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0026-1394/43/2/S12",
    "title": "Optimizing single-photon-source heralding efficiency at 1550 nm using   periodically poled lithium niobate",
    "url": "https://arxiv.org/abs/quant-ph/0601067"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e29cef93-b54e-4be9-9139-2fc62952640e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}