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Chinese Journal of Lasers, Volume. 51, Issue 5, 0501002(2024)

Hundred‑Watt‑Level Mid‑Infrared Random Fiber Laser Amplifier

Wangcheng Gao1, Rui Ma1, Xin Quan1, Yu Chen1, Dianyuan Fan1, and Jun Liu1,2、*
Author Affiliations
  • 1International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, Guangdong , China
  • 2Key Laboratory of High Power Laser and Physics, Chinese Academy of Sciences, Shanghai 201800, China
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    Figures & Tables(7)
    Experimental setup of 1980 nm random fiber laser

    Fig. 1. Experimental setup of 1980 nm random fiber laser

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    Characteristics of seed source of RFL. (a) Output power versus pump power; (b) spectra at different pump powers; (c) short-time temporal trace at pump power of 7.40 W; (d) radio frequency spectrum at pump power of 7.40 W

    Fig. 2. Characteristics of seed source of RFL. (a) Output power versus pump power; (b) spectra at different pump powers; (c) short-time temporal trace at pump power of 7.40 W; (d) radio frequency spectrum at pump power of 7.40 W

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    Output characteristics of preamplifier in RFL. (a) Output power versus pump power; (b) spectra at different pump powers

    Fig. 3. Output characteristics of preamplifier in RFL. (a) Output power versus pump power; (b) spectra at different pump powers

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    Output power versus pump power in main amplifier of RFL

    Fig. 4. Output power versus pump power in main amplifier of RFL

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    Spectrum characteristics of main amplifier of RFL. (a) Spectra at different output powers; (b) 3 dB and 10 dB bandwidths at different output powers

    Fig. 5. Spectrum characteristics of main amplifier of RFL. (a) Spectra at different output powers; (b) 3 dB and 10 dB bandwidths at different output powers

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    Output characteristics of main amplifier of RFL. (a) Short-time temporal intensity distributions at different output powers; (b) radio frequency spectrum at maximum pump power

    Fig. 6. Output characteristics of main amplifier of RFL. (a) Short-time temporal intensity distributions at different output powers; (b) radio frequency spectrum at maximum pump power

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    Stability of long time output power of RFL

    Fig. 7. Stability of long time output power of RFL

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    Wangcheng Gao, Rui Ma, Xin Quan, Yu Chen, Dianyuan Fan, Jun Liu. Hundred‑Watt‑Level Mid‑Infrared Random Fiber Laser Amplifier[J]. Chinese Journal of Lasers, 2024, 51(5): 0501002

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    Paper Information

    Category: laser devices and laser physics

    Received: May. 31, 2023

    Accepted: Aug. 14, 2023

    Published Online: Mar. 5, 2024

    The Author Email: Liu Jun (liu-jun-1987@live.cn)

    DOI:10.3788/CJL230874

    CSTR:32183.14.CJL230874

    Topics

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