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Diode-laser pumped passively Q-switched green laser by intracavity frequency-doubling with periodically poled LiNbO3

✍ Scribed by Shaojun Zhang; Qingpu Wang; Xiangang Xu; Chunming Dong; Xingyu Zhang; Ping Li

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 130 KB
Volume: 35
Category: Article
ISSN: 0030-3992
DOI: 10.1016/s0030-3992(02)00179-2

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✦ Synopsis

A continuous-wave (CW) laser-diode (LD) pumped passively Q-switched intra-cavity frequency-doubling green laser is reported in this paper. We used 3% at Nd doped YVO4 as gain medium, Cr 4+ : YAG as a saturable absorber for passively Q-switch and periodically poled LiNbO3 (PPLN) as a frequency doubler. The output energy of the green laser is 1:96 J with the pulse-width of 15:6 ns. No green-noise problem exists in the green laser. Some theoretical results on the passive Q-switching and intra-cavity frequency-doubling are also discussed.

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