{
  "annotation_id": "5b14f9b1-6001-4f9e-b88f-2a99de1a233a",
  "date_created": "2026-03-02T18:01:11.461000Z",
  "date_modified": "2026-03-02T18:01:11.461000Z",
  "file_hash": "5e239f3dcb7ac1ad6ef7d62d4c259be15df6b63ecddb1d163a94427b0efe3eb2",
  "private": false,
  "record": {
    "abstract": "The limits of applicability of the Lang-Kobayashi (LK) model for a\nsemiconductor laser with optical feedback are analyzed. The model equations,\nequipped with realistic values of the parameters, are investigated below\nsolitary laser threshold where Low Frequency Fluctuations (LFF) are usually\nobserved. The numerical findings are compared with experimental data obtained\nfor the selected polarization mode from a Vertical Cavity Surface Laser (VCSEL)\nsubject to polarization selective external feedback. The comparison reveals the\nbounds within which the dynamics of the LK can be considered as realistic. In\nparticular, it clearly demonstrates that the deterministic LK, for realistic\nvalues of the linewidth enhancement factor $\\alpha$, reproduces the LFF only as\na transient dynamics towards one of the stationary modes with maximal gain. A\nreasonable reproduction of real data from VCSEL can be obtained only by\nconsidering noisy LK or alternatively deterministic LK for extremely high\n$\\alpha$-values.",
    "arxiv_id": "physics/0608041",
    "authors": [
      "Alessandro Torcini",
      "Stephane Barland",
      "Giovanni Giacomelli",
      "Francesco Marin"
    ],
    "categories": [
      "physics.optics",
      "nlin.CD"
    ],
    "doi": "10.1103/PhysRevA.74.063801",
    "journal_ref": "Phys Rev A 74 (2006) 063801",
    "title": "Low frequency fluctuations in a Vertical Cavity Lasers: experiments   versus Lang-Kobayashi dynamics",
    "url": "https://arxiv.org/abs/physics/0608041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a031e8f7-98cb-4f01-b338-bf6f6588b13a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}