{
  "annotation_id": "301704fa-bfac-43bd-9797-3dbc3a59c68b",
  "date_created": "2026-03-02T18:01:17.760000Z",
  "date_modified": "2026-03-02T18:01:17.760000Z",
  "file_hash": "d5f4f1a7e71169976a1be8929430d0826ca0d2a1c388be18348c25c69db79ee1",
  "private": false,
  "record": {
    "abstract": "We report the experimental demonstration of directly produced polarization\nsqueezing at 1064 nm from a type I optical parametric amplifier (OPA) based on\na periodically poled KTP crystal (PPKTP). The orthogonal polarization modes of\nthe polarization squeezed state are both defined by the OPA cavity mode, and\nthe birefringence induced by the PPKTP crystal is compensated for by a second,\nbut inactive, PPKTP crystal. Stokes parameter squeezing of 3.6 dB and anti\nsqueezing of 9.4 dB is observed.",
    "arxiv_id": "physics/0703028",
    "authors": [
      "Mikael Lassen",
      "Metin Sabuncu",
      "Preben Buchhave",
      "Ulrik L. Andersen"
    ],
    "categories": [
      "physics.optics",
      "quant-ph"
    ],
    "doi": "10.1364/OE.15.005077",
    "title": "Generation of Polarization Squeezing with Periodically Poled KTP at 1064   nm",
    "url": "https://arxiv.org/abs/physics/0703028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5211f18f-838f-4cf2-b5da-397501a11c0c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}