{
  "annotation_id": "de723b3c-c484-4827-baba-94fc09814a0f",
  "date_created": "2026-03-02T18:02:23.727000Z",
  "date_modified": "2026-03-02T18:02:23.727000Z",
  "file_hash": "eb7a912bff0edab74978721e81cc2e01fb47454cbc1b4b88e1cb73ab20f71421",
  "private": false,
  "record": {
    "abstract": "We propose and demonstrate a method for measuring the joint spectrum of\nphoton pairs via Fourier spectroscopy. The biphoton spectral intensity is\ncomputed from a two-dimensional interferogram of coincidence counts. The method\nhas been implemented for a type-I downconversion source using a pair of\ncommon-path Mach-Zender interferometers based on Soleil compensators. The\nexperimental results agree well with calculated frequency correlations that\ntake into account the effects of coupling into single-mode fibers. The Fourier\nmethod is advantageous over scanning spectrometry when detectors exhibit high\ndark count rates leading to dominant additive noise.",
    "arxiv_id": "quant-ph/0512039",
    "authors": [
      "Wojciech Wasilewski",
      "Piotr Wasylczyk",
      "Piotr Kolenderski",
      "Konrad Banaszek",
      "Czeslaw Radzewicz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/OL.31.001130",
    "journal_ref": "Optics Letters, Vol. 31, Issue 8, pp. 1130-1132 (2006)",
    "title": "Joint spectrum of photon pairs measured by coincidence Fourier   spectroscopy",
    "url": "https://arxiv.org/abs/quant-ph/0512039"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "beabc935-daad-4e75-9ceb-2f3e1a4c220a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}