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  • Received: Jul. 16, 2020

    Accepted: Sep. 11, 2020

    Posted: Oct. 23, 2020

    Published Online: Oct. 26, 2020

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

    DOI: 10.3788/COL202018.121403

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

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

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

Abstract

Noise-like pulses having a pedestal of 690 fs and a spike of 59.6 fs were generated in a nonlinear Yb-doped fiber amplification system. The seed source is a mode-locked Yb-doped fiber laser by nonlinear polarization rotation, and dissipative soliton pulses were obtained in it. Then, the dissipative soliton pulses passed through a 7.6 m dispersive fiber to enhance the dispersion and nonlinearity. Further on, the dissipative soliton pulses were launched into a Yb-doped fiber nonlinear amplifier, and stable noise-like pulses with a pedestal of 6.26 ps and a spike of 227 fs were achieved. Finally, by a grating pair, the pedestal and spike of the noise-like pulses were effectively compressed to 690 fs and 59.6 fs, respectively. To the best of our knowledge, this is the shortest pedestal demonstrated in noise-like pulses operating at 1 μm.

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