{
  "abstract": "Laser guide star (LGS) adaptive optics cannot directly measure tip-tilt (TT), forcing reliance on natural guide stars and limiting sky coverage. We propose estimating the uplink TT from telemetry acquired at the laser launch telescope alone, operated in a monostatic configuration as both emitter and receiver. Extracting TT over concentric disks of different diameters within the receiving pupil yields signals mixing uplink and downlink contributions in different proportions; this aperture size diversity, combined with an LMMSE estimator, disentangles the uplink component. Simulations show a residual error of 24 mas for a single turbulent layer and 34 mas with two layers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Optics Letters Vol. 51, Issue 18, pp. 5261-5264 (2026)",
  "arxiv": "2607.12494",
  "author_total": 6,
  "authors": [
    {
      "name": "Pierre Jouve"
    },
    {
      "name": "Thierry Fusco"
    },
    {
      "name": "Carlos Correia"
    },
    {
      "name": "Cédric Taissir Heritier"
    },
    {
      "name": "Jean-François Sauvage"
    },
    {
      "name": "Benoit Neichel"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0yd8hzwgfpf3b.bib",
  "cited_by": 0,
  "doi": "10.1364/ol.611519",
  "fulltext_url": null,
  "id": "0yd8hzwgfpf3b",
  "issns": [
    "0146-9592",
    "1539-4794"
  ],
  "landing_url": "https://hal.science/hal-05793863v1",
  "language": "en",
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  "licence_label": "arXiv licence",
  "licence_source": "article",
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  "metadata_licence": "CC0-1.0",
  "native_subjects": [
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  "openalex": "W7168356866",
  "pdf_url": "https://arxiv.org/pdf/2607.12494",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": "Optical Society of America - OSA Publishing",
  "ris": "https://research.draconitic.com/paper/0yd8hzwgfpf3b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:54Z",
      "native_id": "hal-05793863",
      "source": "hal",
      "url": "https://hal.science/hal-05793863v1"
    },
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2607.12494",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.12494"
    }
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  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "earth",
      "origin": "hal:0.sdu",
      "subfield": "general"
    }
  ],
  "title": "Estimation of the laser guide star uplink tip-tilt using aperture size diversity",
  "title_text": "Estimation of the laser guide star uplink tip-tilt using aperture size diversity",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/0yd8hzwgfpf3b",
  "venue": "Optics Letters",
  "versions": [
    {
      "doi": "10.1364/ol.611519",
      "pid": "0yd8hzwgfpf3b",
      "relation": "published-as",
      "title": "Estimation of the laser guide star uplink tip-tilt using aperture size diversity",
      "venue": "Optics Letters"
    }
  ]
}