{
  "annotation_id": "87270b9e-9f8f-4b7e-8420-c7bea153be80",
  "date_created": "2026-03-02T18:01:14.641000Z",
  "date_modified": "2026-03-02T18:01:14.641000Z",
  "file_hash": "745ae98d223063e6781a3a8c935dd307aa52ccc2d6ba83f3e2b4a8b7113110fe",
  "private": false,
  "record": {
    "abstract": "In this paper, we report on new high-precision absolute distance measurements\nperformed with frequency scanned interferometry using a pair of single-mode\noptical fibers. Absolute distances were determined by counting the interference\nfringes produced while scanning the frequencies of the two chopped lasers.\nHigh-finesse Fabry-Perot interferometers were used to determine frequency\nchanges during scanning. Dual lasers with oppositely scanning directions,\ncombined with a multi-distance-measurement technique previously reported, were\nused to cancel drift errors and to suppress vibration effects and interference\nfringe uncertainties. Under realistic conditions, a precision about 0.2 microns\nwas achieved for a distance of 0.41 meters.",
    "arxiv_id": "physics/0609187",
    "authors": [
      "Hai-Jun Yang",
      "Keith Riles"
    ],
    "categories": [
      "physics.ins-det",
      "physics.optics"
    ],
    "doi": "10.1016/j.nima.2007.02.101",
    "journal_ref": "Nucl.Instrum.Meth.A575:395-401,2007",
    "title": "High-precision Absolute Distance Measurement using Dual-Laser Frequency   Scanned Interferometry Under Realistic Conditions",
    "url": "https://arxiv.org/abs/physics/0609187"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e16d94a1-40d0-45d4-9a41-84b85b942d39",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}