{
  "abstract": "This paper develops a stochastic model for quantifying the impact of laser phase noise on photonics-assisted radio frequency (RF) beamforming. Unlike conventional deterministic models, the presented theoretical framework captures the statistical randomness associated with the RF array factor of beamforming networks driven by finite-linewidth lasers. Fourier-domain analysis reveals that laser phase noise reshapes the spatial coherence function of such beamforming networks, inducing coherent RF aperture shrinkage, beam-pattern distortion, and directivity degradation. The analysis highlights that beamforming network architectures employing nanosecond-scale optical differential delays can exhibit substantial performance degradation even when driven by commercially available narrow-linewidth (kHz-range) lasers. Furthermore, it is demonstrated that average RF power gain gets downscaled and fluctuations dominate in large-aperture beamforming networks due to phase noise, imposing an upper limit on the maximum achievable RF antenna array-size. The reported results highlight the quantitative performance and scalability limits imposed by laser phase noise in photonics-assisted RF beamforming, offering key design guidelines for implementing large-scale beamforming networks in next-generation wireless communications, sensing, radar, and radio astronomy applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.32563",
  "author_total": 3,
  "authors": [
    {
      "name": "Niloy Ghosh"
    },
    {
      "name": "David Prinsloo"
    },
    {
      "name": "Eduward Tangdiongga"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/18rn2vk973f42.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.32563",
  "fulltext_url": null,
  "id": "18rn2vk973f42",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.32563",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2208|Advanced Photonic Communication Systems"
    ]
  ],
  "openalex": "W7223703697",
  "pdf_url": "https://arxiv.org/pdf/2610.32563",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/18rn2vk973f42.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:15Z",
      "native_id": "2610.32563",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.32563"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Stochastic Analysis of Laser Phase Noise in Photonics-Assisted Radio Frequency Beamforming",
  "title_text": "Stochastic Analysis of Laser Phase Noise in Photonics-Assisted Radio Frequency Beamforming",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:50Z",
  "url": "https://research.draconitic.com/paper/18rn2vk973f42",
  "venue": "arXiv",
  "versions": []
}