{
  "annotation_id": "d90b296d-e721-493e-bdd1-d3b2207d9a58",
  "date_created": "2026-03-02T18:01:00.643000Z",
  "date_modified": "2026-03-02T18:01:00.643000Z",
  "file_hash": "66ddb2f373f217430e5c1b09adafb27804e60711131260df06c8f618232e266c",
  "private": false,
  "record": {
    "abstract": "To obtain a high degree of long-term length stabilisation of an optical\nreference cavity, its free-spectral range is locked by means of an accurate and\nstable frequency synthesizer. The locking scheme is twofold: a laser is locked\non the N$^{th}$ mode of a reference Fabry-Perot cavity and part of the laser\nlight is shifted in frequency to be in resonance with the (N+1)$^{th}$ mode of\nthe cavity. This shift is generated by an acousto-optical modulator (AOM)\nmounted in a double-pass scheme, matching half of the free spectral range of\nthe reference cavity. The resulting absolute stabilization of the length of the\ncavity reaches the 10$^{-11}$ level per second, limited by the lock transfer\nproperties and the frequency stability of the AOM control synthesizer.",
    "arxiv_id": "physics/0507208",
    "authors": [
      "Ga\u00ebtan Hagel",
      "Marie Houssin",
      "Martina Knoop",
      "Caroline Champenois",
      "Michel Vedel",
      "Fernande Vedel"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1063/1.2136069",
    "title": "Long-term stabilization of the length of an optical reference cavity",
    "url": "https://arxiv.org/abs/physics/0507208"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "517dc753-e810-413c-bfc4-08f87cc538c5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}