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

Title
Comparison of CW Pumping and Quasi-CW Pumping for a Passively Q-switched Nd:YAG Laser
Author(s)
이종훈권진혁곽진석이강인[이강인]김영중[김영중]
Keywords
CR4+-YAG SATURABLE ABSORBER; MICROCHIP LASERS; YAG; ND
Issue Date
201008
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.57, no.2, pp.359 - 363
Abstract
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.
URI
http://hdl.handle.net/YU.REPOSITORY/23856http://dx.doi.org/10.3938/jkps.57.359
ISSN
0374-4884
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이과대학 > 물리학과 > Articles
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