Characteristics of WS2 mode-locked Yb-doped fiber laser

Heyang Guoyu; Kexuan Li; Zikai Dong; Runqin Xu; Jinrong Tian; Yanrong Song

doi:10.1117/12.2524254

29 March 2019 Characteristics of WS₂ mode-locked Yb-doped fiber laser

Heyang Guoyu, Kexuan Li, Zikai Dong, Runqin Xu, Jinrong Tian, Yanrong Song

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110460N (2019) https://doi.org/10.1117/12.2524254
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

An all-normal-dispersion WS₂ mode-locked Yb-doped fiber laser was demonstrated. The saturable absorber (SA) is a piece of WS₂-PVA film which is sandwiched between two fiber connectors. The modulation depth and saturation intensity of the WS₂-PVA film were 1.78% and 81 MW/cm₂ , respectively. When the WS₂-PVA film was utilized in the laser cavity, stable mode locking occurred with the pump power of 140 mW. The maximum single pulse energy was estimated to be more than 2.82 nJ. Besides, in order to know more about the influence of the SA on the generation of ultrashort pulses, the dynamic evolution of mode-locked lasers with the parameters of SAs was studied by solving the Ginzburg-Landau equation. Thus the high pulse energy could be reached.

Citation Download Citation

Heyang Guoyu, Kexuan Li, Zikai Dong, Runqin Xu, Jinrong Tian, and Yanrong Song "Characteristics of WS₂ mode-locked Yb-doped fiber laser", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110460N (29 March 2019); https://doi.org/10.1117/12.2524254

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