• High Power Laser Science and Engineering
  • Vol. 5, Issue 4, 04000e31 (2017)
Xiang Zhao1、2, Yifeng Yang1, Hui Shen1, Xiaolong Chen1, Gang Bai1、2, Jingpu Zhang1、2, Yunfeng Qi1, Bing He1、3, and Jun Zhou1、3、4、†
Author Affiliations
  • 1Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 10049, China
  • 3Nanjing Institute of Advanced Laser Technology, Nanjing 210038, China
  • 4Nanjing Zhongke Shenguang Technology Co. Ltd., Nanjing 210038, China
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    Abstract

    Stimulated Brillouin scattering (SBS) effect is currently the major limitation for the power scaling of single-frequency/narrow linewidth fiber laser systems. A single-mode linearly polarized all-fiber amplifier system is set up to investigate SBS effect in triple-frequency high-power amplifiers. With this amplifier, up to 302 W output power with 83% slope efficiency is achieved and the SBS threshold is scaled up to 12 dB. To the best of our knowledge, this is the highest output power of multifrequency laser from a single-mode polarization maintaining fiber. Good spectral properties and high brightness make this laser source available for the application of second harmonic generation, coherent beam combining.
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    Xiang Zhao, Yifeng Yang, Hui Shen, Xiaolong Chen, Gang Bai, Jingpu Zhang, Yunfeng Qi, Bing He, Jun Zhou. 302 W triple-frequency, single-mode, linearly polarized Yb-doped all-fiber amplifier[J]. High Power Laser Science and Engineering, 2017, 5(4): 04000e31
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    Special Issue:
    Received: Jul. 16, 2017
    Accepted: Sep. 30, 2017
    Published Online: Nov. 21, 2018
    The Author Email: Jun Zhou (junzhousd@siom.ac.cn)