標題: Efficient high-pulse-energy eye-safe laser generated by an intracavity Nd:YLF/KTP optical parametric oscillator: role of thermally induced polarization switching
作者: Huang, Y. J.
Tang, C. Y.
Huang, Y. P.
Cho, C. Y.
Su, K. W.
Chen, Y. F.
電子物理學系
Department of Electrophysics
關鍵字: Nd:YLF;intracavity OPO;thermal effects;polarization switching
公開日期: 2012
摘要: A high-pulse-energy eye-safe laser at 1552 nm is effectually generated by an intracavity Nd:YLF/KTP optical parametric oscillator (OPO) with the help of the thermally induced polarization switching. The polarization characteristics of the c-cut Nd:YLF laser at 1053 nm in the continuous-wave (CW) and Q-switched operation are comprehensively investigated. We experimentally verify the thermally induced birefringence can lead to a polarization switching between the mutually orthogonal components of the fundamental pulses. Consequently, an efficient intracavity nonlinear frequency conversion can be achieved in an optically isotropic laser crystal without any additional polarization control. With this finding, the pulse energy and peak power of the compact Nd: YLF/KTP eye-safe laser under an incident pump power of 12.7 W and a pulse repetition rate of 5 kHz are up to 306 mu J and 4 kW, respectively.
URI: http://hdl.handle.net/11536/16979
http://dx.doi.org/10.7452/lapl.201210071
ISSN: 1612-2011
DOI: 10.7452/lapl.201210071
期刊: LASER PHYSICS LETTERS
Volume: 9
Issue: 10
起始頁: 709
結束頁: 715
顯示於類別:期刊論文


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