IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v16y2025i1d10.1038_s41467-025-64073-y.html
   My bibliography  Save this article

All-fiber highly efficient delivery of 2 kW laser over 2.45 km hollow-core fiber

Author

Listed:
  • Jing Shi

    (National University of Defense Technology
    National University of Defense Technology)

  • Binyu Rao

    (National University of Defense Technology
    National University of Defense Technology)

  • Zilun Chen

    (National University of Defense Technology
    National University of Defense Technology)

  • Zefeng Wang

    (National University of Defense Technology
    National University of Defense Technology)

  • Guangrong Sun

    (National University of Defense Technology
    National University of Defense Technology)

  • Zuying Xu

    (Everfoton Technologies Corporation Limited)

  • Zhen Huang

    (National University of Defense Technology
    National University of Defense Technology)

  • Peng Li

    (Yangtze Optical Fiber and Cable Joint Stock Limited Company (YOFC))

  • Zihan Dong

    (Yangtze Optical Fiber and Cable Joint Stock Limited Company (YOFC))

  • Min Fu

    (National University of Defense Technology
    National University of Defense Technology)

  • Xin Tian

    (National University of Defense Technology
    National University of Defense Technology)

  • Baolai Yang

    (National University of Defense Technology
    National University of Defense Technology)

  • Jian Zhang

    (National University of Defense Technology
    National University of Defense Technology)

  • Zhiyue Zhou

    (National University of Defense Technology
    National University of Defense Technology)

  • Tianyu Li

    (National University of Defense Technology
    National University of Defense Technology)

  • Lei Zhang

    (Yangtze Optical Fiber and Cable Joint Stock Limited Company (YOFC))

  • Biao Shui

    (Everfoton Technologies Corporation Limited)

  • Chenxin Gao

    (National University of Defense Technology
    National University of Defense Technology)

  • Jinbao Chen

    (National University of Defense Technology
    National University of Defense Technology)

Abstract

Anti-resonant hollow-core fibers have emerged as an important medium for high-power laser delivery due to their low optical nonlinearity and high damage threshold. However, current delivery systems of high-power laser based on anti-resonant hollow-core fibers mainly rely on free-space optical components, which limits long-term stability. Here, we report an all-fiber delivery of 2 kW laser with 85.4% transmission efficiency over 2.45 km, using a self-fabricated hollow-core fiber with a record low transmission loss of 0.168 dB/km at 1080 nm. Notably, we observed the phenomenon of stimulated Raman scattering amplified within the silica nested tubes for the first time. By effectively suppressing the Raman noise from the laser source, we achieve an all-fiber laser delivery without stimulated Raman scattering of silica glass. This work marks a significant breakthrough in multi-kilometer and multi-kilowatt power delivery that is potentially useful for industrial manufacturing, nuclear decommissioning, laser drilling in oil and so on.

Suggested Citation

  • Jing Shi & Binyu Rao & Zilun Chen & Zefeng Wang & Guangrong Sun & Zuying Xu & Zhen Huang & Peng Li & Zihan Dong & Min Fu & Xin Tian & Baolai Yang & Jian Zhang & Zhiyue Zhou & Tianyu Li & Lei Zhang & B, 2025. "All-fiber highly efficient delivery of 2 kW laser over 2.45 km hollow-core fiber," Nature Communications, Nature, vol. 16(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-64073-y
    DOI: 10.1038/s41467-025-64073-y
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-025-64073-y
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-025-64073-y?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-64073-y. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.