High-power all-fiber wavelength-widely-tunable Tm3+-doped fiber laser Q-switched by TI-SA

A wavelength widely tunable all-fiber Tm3+-doped double clad fiber laser by using topological insulator (TI) as saturable absorber (SA), for the generation of large energy passively Q-switched pulse, is demonstrated. This 2 m fiber laser source can generate an average output power as high as 195 mW,...

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Bibliographic Details
Published in:Journal of optics (2010) 2019-08, Vol.21 (8)
Main Authors: Zhang, Jiaji, Wu, Duanduan, Quan, Changjun, Guo, Zhenrong, Zhao, Ruwei, Wang, Rongping, Dai, Shixun, Nie, Qiuhua
Format: Article
Language:English
Subjects:
all fiber
high power
Q-switching
topological insulator
wavelength widely tunable Tm fiber laser
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Summary:A wavelength widely tunable all-fiber Tm3+-doped double clad fiber laser by using topological insulator (TI) as saturable absorber (SA), for the generation of large energy passively Q-switched pulse, is demonstrated. This 2 m fiber laser source can generate an average output power as high as 195 mW, corresponding to a pulse energy of ∼3 J, and the laser wavelength can be widely tuned from 1935.42 to 2048.85 nm. This high-performance Q-switched operation is implemented by purpose laser cavity optimization and TI-SA protection. Overall, the above results can provide an easily accessible way to develop large energy wavelength tunable passively Q-switched 2 m fiber laser sources, which possesses important applications in various fields, including manufacturing, spectroscopy, medicine, and the military.
ISSN:2040-8978
2040-8986
DOI:10.1088/2040-8986/ab2a51