Chinese Optics Letters, Volume. 18, Issue 12, 121403(2020)

Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system Editors' Pick

Zexin Zhang1, Jinrong Tian1、*, Changxing Xu1, Runqin Xu2, Youshuo Cui1, Bihui Zhuang1, and Yanrong Song1
Author Affiliations
  • 1College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
  • 2Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
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    Figures & Tables(10)
    Schematic of the nonlinear Yb-doped fiber amplified system. (a) Oscillator, (b) amplifier, and (c) compressor. WDM, wavelength division multiplexer; YDF, Yb-doped fiber; ISO, isolator; OC, output coupler; QWP, quarter-wave plate; HWP, half-wave plate; PBS, polarized beam splitter; BF, birefringence filter; DCYDF, double-cladding Yb-doped fiber; C1–C3, collimators; M, high reflection mirror.
    Output characteristics of the oscillator. (a) Spectral emission versus pump power. (b) RF spectrum (34–45 MHz). Inset: RF spectrum in the span of 2 GHz.
    Spectrum of the amplified pulse with respect to pump power.
    Output power of the amplifier as a function of pump power.
    Pulse duration of the NLPs as a function of separation of the grating pair (red line, pedestal; blue line, spike).
    (a) Shortest pulse duration of a compressed NLP at different pump powers (7.6–8.6 W). (b) Autocorrelation traces of an NLP at pump power of 8 W. Inset: the corresponding spike.
    Autocorrelation trace of the NLP at a pump power of 8 W before compression.
    Spectrum versus the pump power after compression. Inset: spectrum at pump power of 7–9 W.
    Output power with respect to pump power after compression.
    RF spectrum of the NLP from 34 to 45 MHz after compression. Inset: RF spectrum in the span of 2 GHz.
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    Zexin Zhang, Jinrong Tian, Changxing Xu, Runqin Xu, Youshuo Cui, Bihui Zhuang, Yanrong Song. Noise-like pulse with a 690 fs pedestal generated from a nonlinear Yb-doped fiber amplification system[J]. Chinese Optics Letters, 2020, 18(12): 121403

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    Paper Information

    Category: Lasers, Optical Amplifiers, and Laser Optics

    Received: Jul. 16, 2020

    Accepted: Sep. 11, 2020

    Published Online: Oct. 26, 2020

    The Author Email: Jinrong Tian (jrtian@bjut.edu.cn)

    DOI:10.3788/COL202018.121403

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