{
  "annotation_id": "f9f0573d-a6e7-4268-b84b-07e0ac9283b4",
  "date_created": "2026-03-02T18:02:10.187000Z",
  "date_modified": "2026-03-02T18:02:10.187000Z",
  "file_hash": "1ee6d7ebff46a4f578dc47e85ff7440dab7d24464e0af9692fd5d30b0ec063b8",
  "private": false,
  "record": {
    "abstract": "We develop and apply an effective analytic theory of a non-collinear,\nbroadband type-I parametric down-conversion to study a coupling efficiency of\nthe generated photon pairs into single mode optical fibers. We derive\nconditions necessary for highly efficient coupling for single and double type-I\ncrystal producing polarization entangled states of light. We compare the\nobtained approximate analytic expressions with the exact numerical solutions\nand discuss the results for a case of BBO crystals.",
    "arxiv_id": "quant-ph/0407113",
    "authors": [
      "Andrzej Dragan"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.053814",
    "title": "Efficient fiber coupling of down-conversion photon pairs",
    "url": "https://arxiv.org/abs/quant-ph/0407113"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "13145bae-42eb-4c11-b7aa-c66138d2e82f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}