{
  "abstract": "Broadband and simultaneously accessible multi-tone millimeter-wave (mmWave) and terahertz (THz) signals are attractive for multi-band wireless communication and spectroscopy applications, yet their generation remains constrained by electronic bandwidth limitations and inefficient optical frequency conversion. Here, we demonstrate reconfigurable photonic generation of multi-tone mmWave/THz signals with comb spacings of 100, 200, 300, and 400 GHz, using a strongly asymmetric dual-ring silicon-nitride (SiN) microresonator and a broadband spiral plasmonic photomixer. A localized avoided-mode crossing (AMX) introduced by an auxiliary ring supports a fixed optical parametric oscillation (OPO) mode pair over an extended pump-detuning range, consistent with passive compensation of detuning-dependent phase mismatch. This enables a maximum pump-to-generated-line conversion efficiency of 67.3 % with 25.06 dB of pump depletion across different pump wavelength selections. Direct photomixing of these optical states produces simultaneous multi-frequency tones spanning 100 to 900 GHz without intermediate optical amplification. The generated carriers are further characterized through down-converted spectra, frequency-noise power spectral density (PSD), and Allan deviation measurements, yielding a \\b{eta}-separation linewidth of 26 kHz at an observation time of 0.1 s. Optical modulation offers high radiated power levels exceeding 2 mW at 100 GHz at a duty cycle of 1 %, while mitigating thermal breakdown in the photomixer. High optical conversion efficiency, reconfigurable and selectable comb spacings, and broadband multi-tone generation on a chip-scale platform provide a compact route toward reconfigurable multi-band mmWave/THz sources for wireless communication, spectroscopy, and sensing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03997",
  "author_total": 10,
  "authors": [
    {
      "name": "Dong IL Lee"
    },
    {
      "name": "Fanqi Shen"
    },
    {
      "name": "Wenzheng Liu"
    },
    {
      "name": "Xinghe Jiang"
    },
    {
      "name": "Anika Tabassum"
    },
    {
      "name": "Alwaleed Aldhafeeri"
    },
    {
      "name": "Manas Choure"
    },
    {
      "name": "Jasmine Lu"
    },
    {
      "name": "Mona Jarrahi"
    },
    {
      "name": "Chee Wei Wong"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a3mnbvfpbdvm6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03997",
  "fulltext_url": null,
  "id": "a3mnbvfpbdvm6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03997",
  "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/2611.03997",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a3mnbvfpbdvm6.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.03997",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03997"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Reconfigurable multi-tone mmWave/THz generation powered by high-efficiency Kerr parametric oscillation",
  "title_text": "Reconfigurable multi-tone mmWave/THz generation powered by high-efficiency Kerr parametric oscillation",
  "type": "preprint",
  "updated_at": "2026-11-04T15:21:25Z",
  "url": "https://research.draconitic.com/paper/a3mnbvfpbdvm6",
  "venue": "arXiv",
  "versions": []
}