{
  "annotation_id": "6fa5ee57-c151-4c15-8970-c0be228ba159",
  "date_created": "2026-03-02T18:02:03.238000Z",
  "date_modified": "2026-03-02T18:02:03.238000Z",
  "file_hash": "d6ab31b6d88c0baa7b9352677886a009540f537f9eafcac57d228c66f8350592",
  "private": false,
  "record": {
    "abstract": "We have integrated a commercial avalanche photodiode (APD) and the circuitry\nneeded to operate it as a single-photon detector (SPD) onto a single PC-board.\nAt temperatures accessible with Peltier coolers (~200-240K), the PCB-SPD\nachieves high detection efficiency (DE) at 1308 and 1545 nm with low dark count\nprobability (e.g. ~10-6/bias pulse at DE=20%, 220 K), making it useful for\nquantum key distribution (QKD). The board generates fast bias pulses, cancels\nnoise transients, amplifies the signals, and sends them to an on-board\ndiscriminator. A digital blanking circuit suppresses afterpulsing.",
    "arxiv_id": "quant-ph/0311112",
    "authors": [
      "Donald S. Bethune",
      "William P. Risk",
      "Gary W. Pabst"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340408235278",
    "title": "A high-performance integrated single-photon detector for telecom   wavelengths",
    "url": "https://arxiv.org/abs/quant-ph/0311112"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "936919b2-97e7-428f-8f80-691b2c328e7f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}