{
  "abstract": "Driven by large AI models, the demand for datacenter interconnects is outstripping traditional scaling laws. This necessitates a transition toward dense multiplexing techniques, such as wavelength-division multiplexing (WDM), for datacenter environments, transferring long-haul spectral efficiency to short-reach, high-bandwidth applications. Integrated optical frequency combs offer compact, low-cost light sources for future datacenter WDM interconnects. However, existing Kerr comb and mode-locked laser implementations suffer from drawbacks in power efficiency, spectral flatness and phase noise. Their fixed, device-specific channel spacings often conflict with standard WDM grids, and co-integration with high-speed modulators remains challenging. Here, we overcome these limitations by demonstrating high-capacity data transmission using flat-top electro-optic combs on thin-film lithium niobate (TFLN), a platform featuring flat spectra, tunable wavelengths and comb spacing, alongside native compatibility with (de-)multiplexers and high-speed modulators. Using 46 wavelength channels from two lasers and a 50-GHz on-chip electro-optic comb, we realize 16.56 Tb/s coherent transmission over a 98.84-km deployed fiber link between two universities and two datacenters in Hong Kong, verifying its suitability for inter-datacenter connections. To highlight grid reconfigurability, we reconfigure the comb to 100-GHz spacing via an on-chip demultiplexer and demonstrate 10-channel, 80-GBaud coherent transmission at 6.4 Tb/s. We further report a proof-of-concept monolithic WDM transmitter integrating the comb and high-speed modulator, achieving 19-channel, 45-GBaud IM/DD transmission at 1.71 Tb/s. Our work validates TFLN electro-optic combs as flexible, compact and scalable WDM engines for both coherent and IM/DD datacenter links to satisfy rapidly rising bandwidth requirements.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.34821",
  "author_total": 11,
  "authors": [
    {
      "name": "Yikun Chen"
    },
    {
      "name": "Chuang Xu"
    },
    {
      "name": "Ke Zhang"
    },
    {
      "name": "Xiong Wu"
    },
    {
      "name": "Kangping Zhong"
    },
    {
      "name": "Xiangzhi Xie"
    },
    {
      "name": "Hanke Feng"
    },
    {
      "name": "Yifan Wu"
    },
    {
      "name": "Chao Lu"
    },
    {
      "name": "Alan Pak Tao Lau"
    },
    {
      "name": "Cheng Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9zyr340673e9f.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.34821",
  "fulltext_url": null,
  "id": "9zyr340673e9f",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.34821",
  "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",
      "3107|Advanced Fiber Laser Technologies"
    ]
  ],
  "openalex": "W7224013501",
  "pdf_url": "https://arxiv.org/pdf/2610.34821",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9zyr340673e9f.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.34821",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.34821"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Electro-optic comb-driven massive data transmission on monolithically integrated lithium niobate photonic circuits",
  "title_text": "Electro-optic comb-driven massive data transmission on monolithically integrated lithium niobate photonic circuits",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/9zyr340673e9f",
  "venue": "arXiv",
  "versions": []
}