Noise-like pulses with an extremely broadband spectrum in passively mode-locked fiber lasers
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS(2021)
Abstract
Using numerical simulation, we investigate the formation of noise-like pulses with an extremely broadband spectrum in passively mode-locked fiber lasers. The mechanism of spectral broadening is due to the Kerr nonlinearity of the fibers making up the laser cavity. It is found that optimization of the nonlinear-dispersion parameters of the fiber cavity can lead to the generation of noise-like pulses with a spectral width exceeding the gain bandwidth by a factor of more than 10. (C) 2021 Optical Society of America
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Key words
lasers,broadband spectrum,fiber,noise-like,mode-locked
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