Main > Chinese Journal of Lasers >  Volume 46 >  Issue 9 >  Page 0901009 > Article
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  • Received: Apr. 30, 2019

    Accepted: May. 21, 2019

    Posted: Sep. 1, 2019

    Published Online: Sep. 10, 2019

    The Author Email: Song Yanrong (yrsong@bjut.cn)

    DOI: 10.3788/CJL201946.0901009

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    Jinyi Guo, Runqin Xu, Luyao Fan, Changxing Xu, Jinrong Tian, Yanrong Song. Mechanism of Broadband Spectrum Generation Based on Nonlinear Ytterbium-Doped Fiber Amplifier[J]. Chinese Journal of Lasers, 2019, 46(9): 0901009

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Chinese Journal of Lasers, Vol. 46, Issue 9, 0901009 (2019)

Mechanism of Broadband Spectrum Generation Based on Nonlinear Ytterbium-Doped Fiber Amplifier

Guo Jinyi, Xu Runqin, Fan Luyao, Xu Changxing, Tian Jinrong, and Song Yanrong*

Author Affiliations

  • College of Applied Sciences, Beijing University of Technology, Beijing 100124, China

Abstract

The influences of central wavelength of the seed pulse and gain fiber length of the amplifier on the characteristics of broadband spectra are systematically investigated based on nonlinear ytterbium-doped fiber amplifiers. The dissipative solitons from the nonlinear amplifier are obtained by using the nonlinear polarization rotation mode-locking technique. The best flat wide spectrum with wavelength range of 1040-1600 nm is obtained when the center wavelength of the seed pulse is 1041 nm and the gain fiber length of the amplifier is 8 m. The flatness is about 10 dB, and the wide spectral flatness is less than 1.5 dB from 1040 to 1250 nm.

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