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24 October 2017 Simulation of dissipative-soliton-resonance generation in a passively mode-locked Yb-doped fiber laser
Wenxiong Du, Heping Li, Cong Liu, Shengnan Shen, Shangjian Zhang, Yong Liu
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Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 104571L (2017) https://doi.org/10.1117/12.2284365
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
We present a numerical investigation of dissipative-soliton-resonance (DSR) generation in an all-normal-dispersion Ybdoped fiber laser mode-locked by a real saturable absorber (SA). In the simulation model, the SA includes both the saturable absorption and excited-state absorption (ESA) effects. The intra-cavity pulse evolution is numerically simulated with different transmission functions of SA. When omitting the ESA effect, the transmissivity of SA increases monotonically with the input pulse power. The noise-like pulse (NLP) operation in the cavity is obtained at high pump power, which is attributed to the spectral filtering effect. When the ESA effect is activated, higher instantaneous power part of pulse encounters larger loss induced by SA, causing that the pulse peak power is clamped at a certain fixed value. With increasing pump, the pulse starts to extend in the time domain while the pulse spectrum is considerably narrowed. In this case, the NLP operation state induced by the spectral filtering effect is avoided and the DSR is generated. Our simulation results indicate that the ESA effect in the SA plays a dominant role in generating the DSR pulses, which will be conducive to comprehending the mechanism of DSR generation in passively mode-locked fiber lasers.
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Wenxiong Du, Heping Li, Cong Liu, Shengnan Shen, Shangjian Zhang, and Yong Liu "Simulation of dissipative-soliton-resonance generation in a passively mode-locked Yb-doped fiber laser", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104571L (24 October 2017); https://doi.org/10.1117/12.2284365
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