Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Photonics Research, Volume. 13, Issue 6, 1631(2025)

Origin of SBS-induced mode distortion in high power narrow linewidth fiber amplifiers

Yu Wen1、†, Chun Zhang1、†, Yuan Zhu1,2, Zixiang Gao1, Xingchen Jiang1, Rumao Tao1,3、*, Qiuhui Chu1,4、*, Qiang Shu1, Fengyun Li1, Haoyu Zhang1, Honghuan Lin1, Zhitao Peng1, and Jianjun Wang1
Author Affiliations
  • 1Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China
  • 2College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • 3e-mail: supertaozhi@163.com
  • 4e-mail: chuqiuhui@163.com
    • show less
    Full TextGet PDF
    Figures&Tables (8)
    Equations (0)
    References (32)
    Tools
    Paper Information
    Topics
    Figures & Tables(8)
    Experimental setup of the laser system.

    Fig. 1. Experimental setup of the laser system.

    Download full size
    View in Article
    (a) The output power and backward power of laser system versus pump power. (b) The output beam quality and the M2 factor at different pump powers (insets: the beam profiles).

    Fig. 2. (a) The output power and backward power of laser system versus pump power. (b) The output beam quality and the M2 factor at different pump powers (insets: the beam profiles).

    Download full size
    View in Article
    (a) The backward and (b) output optical spectra versus output power.

    Fig. 3. (a) The backward and (b) output optical spectra versus output power.

    Download full size
    View in Article
    (a) The SBS signal fraction and Raman light ratio versus output power and (b) the fitting sample graph.

    Fig. 4. (a) The SBS signal fraction and Raman light ratio versus output power and (b) the fitting sample graph.

    Download full size
    View in Article
    The backward temporal characteristics (a) around the SBS effect and (b) the MD; the synchronous forward temporal characteristics (c) around the SBS effect and (d) the MD. (e) The pulse width of one single forward giant pulse (inset: the local magnification of the pulse at the same time location).

    Fig. 5. The backward temporal characteristics (a) around the SBS effect and (b) the MD; the synchronous forward temporal characteristics (c) around the SBS effect and (d) the MD. (e) The pulse width of one single forward giant pulse (inset: the local magnification of the pulse at the same time location).

    Download full size
    View in Article
    The forward Fts around the SBS effect with the range of (a) kHz and (b) MHz. The forward Fts around the MD with the range of (c) kHz and (d) MHz.

    Fig. 6. The forward Fts around the SBS effect with the range of (a) kHz and (b) MHz. The forward Fts around the MD with the range of (c) kHz and (d) MHz.

    Download full size
    View in Article
    (a) The backward optical spectrum and (b) the output beam quality at several typical output powers. The forward (c) temporal trace and (d) optical spectrum at the maximal output power.

    Fig. 7. (a) The backward optical spectrum and (b) the output beam quality at several typical output powers. The forward (c) temporal trace and (d) optical spectrum at the maximal output power.

    Download full size
    View in Article

    • Table 1. Basic Simulation Parameters of SRS Effect

      View table
      View in Article

      Table 1. Basic Simulation Parameters of SRS Effect

      ParameterValueParameterValue
      Rcore (core radius)10 μmgR (Raman gain factor)1.06×10−13  m/W
      Rclad (cladding radius)200 μmλS (signal wavelength)1064 nm
      L (total fiber length)23 mλP (pump wavelength)976 nm
      N (doping density)7.8×1025  m−3λR (Raman wavelength)1116 nm
    Tools

    Get Citation

    Copy Citation Text

    Yu Wen, Chun Zhang, Yuan Zhu, Zixiang Gao, Xingchen Jiang, Rumao Tao, Qiuhui Chu, Qiang Shu, Fengyun Li, Haoyu Zhang, Honghuan Lin, Zhitao Peng, Jianjun Wang, "Origin of SBS-induced mode distortion in high power narrow linewidth fiber amplifiers," Photonics Res. 13, 1631 (2025)

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Lasers and Laser Optics

    Received: Jan. 23, 2025

    Accepted: Mar. 26, 2025

    Published Online: May. 26, 2025

    The Author Email: Rumao Tao (supertaozhi@163.com), Qiuhui Chu (chuqiuhui@163.com)

    DOI:10.1364/PRJ.557887

    CSTR:32188.14.PRJ.557887

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology