Open AccessImpact of spectral filtering on pulse breaking-up and noise-like pulse generation in all-normal dispersion fiber lasers
Author(s) -
Rongkun Xu,
Xu Fei,
Yangrong Song,
Lei Duan,
Yunbo Song,
Shudan Tan,
Zhaohui Liu
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.391186
Subject(s) - optics , bandwidth limited pulse , pulse (music) , dispersion (optics) , fiber laser , filter (signal processing) , physics , femtosecond pulse shaping , laser , noise (video) , wavelength , gaussian , materials science , ultrashort pulse , computer science , artificial intelligence , detector , image (mathematics) , computer vision , quantum mechanics
Based on mathematic simulations, the impact of spectral filtering on pulse breaking up and noise-like pulse generation in all-normal-dispersion fiber lasers are investigated. Three types of spectrum filters are employed in the simulations, which have a Gaussian-shaped profile, super-Gaussian-shaped profile, and sinusoidal-shaped profile, respectively. With the Gaussian-shaped filter, the pulse breaking-up process is discussed. The super-Gaussian-shaped filter and the sinusoidal-shaped filter have two different formation mechanisms for noise-like pulses and are revealed. In addition, with the sinusoidal-shaped filter, dissipative solitons of different central wavelengths are achieved.