{
  "annotation_id": "e22902ba-4417-42f1-b353-a356c5d917ce",
  "date_created": "2026-03-02T18:01:14.929000Z",
  "date_modified": "2026-03-02T18:01:14.929000Z",
  "file_hash": "e922c0632336f3ce10effe6c2c29e418e90788dbab3d5fde1d3468b0da0fddd7",
  "private": false,
  "record": {
    "abstract": "We report the observation of a coherent multimode instability in quantum\ncascade lasers (QCLs), which is driven by the same fundamental mechanism of\nRabi oscillations as the elusive Risken-Nummedal-Graham-Haken (RNGH)\ninstability predicted 40 years ago for ring lasers. The threshold of the\nobserved instability is significantly lower than in the original RNGH\ninstability, which we attribute to saturable-absorption nonlinearity in the\nlaser. Coherent effects, which cannot be reproduced by standard laser rate\nequations, can play therefore a key role in the multimode dynamics of QCLs, and\nin lasers with fast gain recovery in general.",
    "arxiv_id": "physics/0612075",
    "authors": [
      "C. Y. Wang",
      "L. Diehl",
      "A. Gordon",
      "C. Jirauschek",
      "F. X. Kaertner",
      "A. Belyanin",
      "D. Bour",
      "S. Corzine",
      "G. Hoefler",
      "M. Troccoli",
      "J. Faist",
      "F. Capasso"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevA.75.031802",
    "title": "Coherent instabilities in a semiconductor laser with fast gain recovery",
    "url": "https://arxiv.org/abs/physics/0612075"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e74d414f-0be6-461f-9478-802dcdab90c7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}