{
  "annotation_id": "916b1d55-6526-4b42-81dd-785cbafde7bb",
  "date_created": "2026-03-02T18:02:34.049000Z",
  "date_modified": "2026-03-02T18:02:34.049000Z",
  "file_hash": "f5b2dc2efc9b69ec4e4cdddcf0e9ef0dfd585d0b0d8cce4685d8918369fccbc9",
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  "record": {
    "abstract": "The formalism for computing the signal-to-noise ratio (SNR) for laser radar\nis reviewed and applied to the tasks of target detection, direction-finding,\nand phase change estimation with squeezed light. The SNR for heterodyne\ndetection of coherent light using a squeezed local oscillator is lower than\nthat obtained using a coherent local oscillator. This is true for target\ndetection, for phase estimation, and for direction-finding with a split\ndetector. Squeezing the local oscillator also lowers SNR in balanced homodyne\nand heterodyne detection of coherent light. Loss places an upper bound on the\nimprovement that squeezing can bring to direct-detection SNR.",
    "arxiv_id": "quant-ph/0701245",
    "authors": [
      "Mark A. Rubin",
      "Sumanth Kaushik"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/AO.48.004597",
    "journal_ref": "Appl. Opt. 48, 4597-4609 (2009)",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Signal-to-Noise Ratio in Squeezed-Light Laser Radar",
    "url": "https://arxiv.org/abs/quant-ph/0701245"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6f050713-380a-4158-bf5d-4720f84bf4fd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}