{
  "abstract": "The realization of high-performance femtosecond lasers on photonic integrated circuits (PICs) requires robust, low-loss coupling between a saturable absorber and a photonic waveguide. In this work, we demonstrate the hybrid integration of a semiconductor saturable absorber mirror (SESAM) with a silicon nitride (SiN) PIC by micro-assembly. This micro-assembly strategy transfers the non-linear functionality of the absorber onto the PIC. We characterize the linear and non-linear performance of an unbonded SESAM and of a SESAM bonded to inverse-tapered SiN waveguides. At 1560~nm, the bonded device shows a waveguide-coupled modulation depth of 5.2\\%, a maximum reflectivity of 37.2\\%, and a saturation fluence of 47~\\textmu J/cm$^2$. This work demonstrates that SESAMs can be integrated directly onto silicon nitride-based PIC platforms and provides a pathway towards fully integrated, self-starting, chip-scale ultrafast lasers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.08057",
  "author_total": 8,
  "authors": [
    {
      "name": "Amaryllis Verstraete"
    },
    {
      "name": "Tom Reep"
    },
    {
      "name": "Jan de Haan"
    },
    {
      "name": "Eero Koivusalo"
    },
    {
      "name": "Riku Isoaho"
    },
    {
      "name": "Thi Ngoc Lam Tran"
    },
    {
      "name": "Bart Kuyken"
    },
    {
      "name": "Kasper Van Gasse"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1dfyb8babx38g.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.08057",
  "fulltext_url": null,
  "id": "1dfyb8babx38g",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.08057",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.08057",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1dfyb8babx38g.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.08057",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.08057"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Hybrid integration of a SESAM with a silicon nitride photonic integrated circuit",
  "title_text": "Hybrid integration of a SESAM with a silicon nitride photonic integrated circuit",
  "type": "preprint",
  "updated_at": "2026-11-07T18:20:18Z",
  "url": "https://research.draconitic.com/paper/1dfyb8babx38g",
  "venue": "arXiv",
  "versions": []
}