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Diode-pumped passively Q-switched intracavity frequency doubled Nd:GdVO4/KTP green laser

✍ Scribed by Jie Liu; Jimin Yang; Jingliang He

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 216 KB
Volume: 36
Category: Article
ISSN: 0030-3992
DOI: 10.1016/s0030-3992(03)00126-9

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✦ Synopsis

A compact diode-pumped passively Q-switched intracavity frequency-doubled Nd:GdVO4=KTP green-pulse laser was demonstrated, using Cr 4+ :YAG as a saturable absorber in a simple at-at cavity. With a 5:9 W incident pump power, a passively Q-switched green laser was obtained with an average power of 397 mW, repetition rate of 40 kHz, and pulse width of 40 ns, when the initial transmission of Cr 4+ :YAG was 85%. The shortest pulse width of 30 ns, the highest green peak power of 696 W and the maximum pulse energy of 21 J were obtained when the initial transmission of Cr 4+ :YAG was 70%. Under CW green operation, we obtained 440 mW output power.

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