|標題:||Performance enhancement of sub-nanosecond diode-pumped passively Q-switched Yb:YAG microchip laser with diamond surface cooling|
|作者:||Zhuang, W. Z.|
Su, K. W.
Huang, K. F.
Chen, Y. F.
Department of Electrophysics
|摘要:||We experimentally confirm that diamond surface cooling can significantly enhance the output performance of a sub-nanosecond diode-end-pumped passively Q-switched Yb:YAG laser. It is found that the pulse energy obtained with diamond cooling is approximately 1.5 times greater than that obtained without diamond cooling, where a Cr4+:YAG absorber with the initial transmission of 84% is employed. Furthermore, the standard deviation of the pulse amplitude peak-to-peak fluctuation is found to be approximately 3 times lower than that measured without diamond cooling. Under a pump power of 3.9 W, the passively Q-switched Yb: YAG laser can generate a pulse train of 3.3 kHz repetition rate with a pulse energy of 287 mu J and with a pulse width of 650 ps. (C)2012 Optical Society of America|
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