An acoustic-optically Q-switched Tm:SSO laser at 2μm

An actively Q-switched Tm:SSO laser was realized by using an acoustic-optical (AO) modulator, and stable Q-switching operation was obtained with the pulse repetition frequency (PRF) varying from 1kHz to 10kHz. At PRF of 1kHz, the Tm:SSO laser yielded a shortest 308ns pulse with M2 factor less than 1...

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Bibliographic Details
Published in:Optics communications 2015-02, Vol.336, p.20-23
Main Authors: Feng, T.L., Yang, K.J., Zhao, S.Z., Qiao, W.C., Zhao, J., Li, D.C., Li, G.Q., Li, T., Zheng, L.H., Xu, J., Wang, Q.G., Xu, X.D., Su, L.B.
Format: Article
Language:English
Subjects:
Acoustic-optical modulator
Acoustics
Crystals
Lasers
LD-pumped
Modulators
Pulse repetition frequency
Q-switched
Tm:SSO laser
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Summary:An actively Q-switched Tm:SSO laser was realized by using an acoustic-optical (AO) modulator, and stable Q-switching operation was obtained with the pulse repetition frequency (PRF) varying from 1kHz to 10kHz. At PRF of 1kHz, the Tm:SSO laser yielded a shortest 308ns pulse with M2 factor less than 1.6 at 1968nm, corresponding to a single pulse energy of 128μJ and pulse peak power of 416W. The experimental results indicate the Tm:SSO crystal is favorable for obtaining low PRF 2μm laser pulses.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2014.09.071