Comparison of CW Pumping and Quasi-CW Pumping for a Passively Q-switched Nd:YAG Laser

被引：2
|
作者：
Lee, Kangin [1 ]
Kim, Youngjung [1 ]
Gwag, Jin Seog [1 ]
Kwon, Jin Hyuk [1 ]
Yi, Jonghoon [1 ]
机构：
[1] Yeungnam Univ, Dept Phys, Gyongsan 712749, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2010年 / 57卷 / 02期
关键词：
Nd:YAG laser; Passive Q-switching; Diode-pumped laser; Quasi-cw pumping; CR4+-YAG SATURABLE ABSORBER; MICROCHIP LASERS; YAG; ND;
D O I：
10.3938/jkps.57.359
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A passively Q-switched 1064-nm laser pulse was generated when a quasi-cw laser diode beam with a pulsewidth of several hundreds of microseconds pumped a Nd:YAG crystal. A Cr:YAG crystal was used as a saturable absorber. The temporal delay between the onset of the laser diode pump and the Q-switched output pulse was studied as a function of the initial transmission of Cr:YAG for several output couplers with different reflectivities. By pumping the Nd:YAG laser with a quasi-cw laser diode, we could actively control the pulse repetition rate of the passively Q-switched Nd:YAG laser. Also, the temporal jitter of the Q-switched pulse for the cw-laser-diode-pumped case could be reduced by using quasi-cw pumping. The temporal width and the peak power of the Q-switched pulse for the quasi-cw-pumped case were compared with those for the cw-laser-diode-pumped case.
引用
收藏
页码：359 / 363
页数：5
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