{
  "abstract": "An electro-optical (EO) Q-switched laser at 640 nm in Pr 3+ :LiYF 4 (Pr:YLF) is achieved in a compact plane-parallel cavity design. An intracavity lens enables a tightly focused mode within the praseodymium-doped crystal while maintaining a collimated beam in the EO modulator. This configuration is expected to reduce astigmatism and depolarization losses. Under Q-switching laser operation, the system delivers a single-pulse energy of 28.9 µJ with a pulse duration of 47.5 ns at a repetition rate of 5 kHz. When operated at 20 kHz, the laser produces an average power of 380 mW, corresponding to a slope efficiency of 21.2%, demonstrating efficient energy extraction from the Pr:YLF gain medium under EO modulation. To the best of our knowledge, this result represents the highest slope efficiency reported for an EO Q-switched visible Pr:YLF laser.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "name": "Remi Garot-Jacquey"
    },
    {
      "name": "Lauren Guillemot"
    },
    {
      "name": "Remi Soulard"
    },
    {
      "name": "Gabriel Mennerat"
    },
    {
      "name": "Pavel Loiko"
    },
    {
      "name": "Patrice Camy"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4czzzawkr524t.bib",
  "cited_by": 0,
  "doi": "10.1364/ao.606251",
  "fulltext_url": null,
  "id": "4czzzawkr524t",
  "issns": [
    "1559-128X",
    "2155-3165"
  ],
  "landing_url": "https://hal.science/hal-05726204v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "openalex",
      "2208|Solid State Laser Technologies"
    ]
  ],
  "openalex": "W7167667520",
  "pdf_url": "https://hal.science/hal-05726204/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-03",
  "publisher": "Optical Society of America",
  "ris": "https://research.draconitic.com/paper/4czzzawkr524t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:21Z",
      "native_id": "hal-05726204",
      "source": "hal",
      "url": "https://hal.science/hal-05726204v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Efficient 640 nm actively Q-switched Pr:YLF laser",
  "title_text": "Efficient 640 nm actively Q-switched Pr:YLF laser",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:21Z",
  "url": "https://research.draconitic.com/paper/4czzzawkr524t",
  "venue": "Applied optics",
  "versions": []
}