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Chinese Journal of Lasers, Volume. 52, Issue 11, 1101006(2025)

RIN Characteristics of Yb‐Doped Fiber Amplifier Tandem‐Pumped by Single Frequency Laser

Xinyu Wen1,2, Xuezong Yang2、*, Weibiao Chen1,2, Yan Feng2, and Dijun Chen1,2、**
Author Affiliations
  • 1Research Center for Aerospace Laser and Systems, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of the Chinese Academy of Sciences, Hangzhou 310024, Zhejiang , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    References (26)
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    Figures & Tables(7)
    Experimental setup

    Fig. 1. Experimental setup

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    Output spectra of 1018 nm laser. (a) 1018 nm seed laser; (b) 1018 nm laser after pre-amplification

    Fig. 2. Output spectra of 1018 nm laser. (a) 1018 nm seed laser; (b) 1018 nm laser after pre-amplification

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    Output powers of 1064 nm fiber amplifier. (a) 1018 nm laser pumping; (b) 976 nm laser pumping

    Fig. 3. Output powers of 1064 nm fiber amplifier. (a) 1018 nm laser pumping; (b) 976 nm laser pumping

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    RIN curves of 1018 nm laser pumped by 976 nm LD

    Fig. 4. RIN curves of 1018 nm laser pumped by 976 nm LD

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    RIN curves. (a) RIN curves of tandem-pumped 1064 nm laser at different output powers; (b) RIN curves of 976 nm LD pumped 1064 nm laser at different temperatures

    Fig. 5. RIN curves. (a) RIN curves of tandem-pumped 1064 nm laser at different output powers; (b) RIN curves of 976 nm LD pumped 1064 nm laser at different temperatures

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    RIN curves and spectra of 1064 nm output laser under different pumping schemes. (a) RIN curves; (b) spectra

    Fig. 6. RIN curves and spectra of 1064 nm output laser under different pumping schemes. (a) RIN curves; (b) spectra

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    • Table 1. RIN suppression levels and methods of all fiber single frequency amplifiers in different wavelengths

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      Table 1. RIN suppression levels and methods of all fiber single frequency amplifiers in different wavelengths

      Wavelength /nmPower/mWNoise suppression levelMethodYear
      106410.520 dB suppression in frequency band greater than 10 HzErbium-doped fiber amplifier gain saturation effect［19］2013
      97616.55 dB suppression in 400 Hz‒2 MHz frequency bandSemiconductor optical amplifier gain saturation effect［20］2015
      155017.5Maximum suppression near relaxation oscillation frequency is 50 dB， and relative intensity noise from 0.8 kHz to 50 MHz is below -150 dBc/HzSemiconductor optical amplifier gain saturation effect［21］2016
      15601.330 dB suppression in frequency band lower than 10 kHzNonlinear amplifying compound loop mirror［22］2017
      1064365×103Suppressed relative intensity noise of -160 dBc/Hz between 2 kHz and 10 kHz frequency bandServo loop active power control［23］2020
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    Xinyu Wen, Xuezong Yang, Weibiao Chen, Yan Feng, Dijun Chen. RIN Characteristics of Yb‐Doped Fiber Amplifier Tandem‐Pumped by Single Frequency Laser[J]. Chinese Journal of Lasers, 2025, 52(11): 1101006

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    Paper Information

    Category: laser devices and laser physics

    Received: Jan. 10, 2025

    Accepted: Mar. 18, 2025

    Published Online: Jun. 7, 2025

    The Author Email: Xuezong Yang (xuezong.yang@ucas.ac.cn), Dijun Chen (djchen@siom.ac.cn)

    DOI:10.3788/CJL250447

    Topics

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