Exploring the self-mode locking of the 2  μm Tm:YAG laser with suppression of the self-pulsing dynamic

A continuous-wave (cw) self-mode-locked Tm:YAG laser at 2015 nm is successfully demonstrated by suppressing the self-pulsing behavior. By using rate equations to simulate the laser temporal dynamic, the theoretical analysis indicates that the reabsorption-induced self-pulsing for the Tm:YAG laser ca...

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Bibliographic Details
Published in:Optics letters 2017-12, Vol.42 (24), p.5226-5229
Main Authors: Cho, Chun Yu, Chen, Yung Fu, Zhang, Ge, Chen, Wei Dong, Liang, Hsing Chih
Format: Article
Language:English
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Summary:A continuous-wave (cw) self-mode-locked Tm:YAG laser at 2015 nm is successfully demonstrated by suppressing the self-pulsing behavior. By using rate equations to simulate the laser temporal dynamic, the theoretical analysis indicates that the reabsorption-induced self-pulsing for the Tm:YAG laser can be suppressed with sufficient pump power. It is experimentally confirmed that at absorbed powers higher than 6 W, the self-pulsing can be eliminated and a cw self-mode-locked pulse is generated instead of the Q-switched mode locking. At an absorbed power of 6.8 W, the output power of the self-mode-locked Tm:YAG laser reaches 1.22 W with corresponding pulse duration of 3 ps and a repetition rate of 3.376 GHz.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.42.005226