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

被引：0
|
作者：
Guo J. [1 ]
Xu R. [1 ]
Fan L. [1 ]
Xu C. [1 ]
Tian J. [1 ]
Song Y. [1 ]
机构：
[1] College of Applied Sciences, Beijing University of Technology, Beijing
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2019年 / 46卷 / 09期
关键词：
Amplifier; Flat broadband spectrum; Laser optics; Mode locking; Stimulated Raman scattering; Ytterbium-doped fiber;
D O I：
10.3788/CJL201946.0901009
中图分类号：
学科分类号：
摘要：
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. © 2019, Chinese Lasers Press. All right reserved.
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