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Diode-pumped passively mode-locked YVO4/Nd:YVO4 composite crystal laser with LT-In0.25Ga0.75As saturable absorber

✍ Scribed by T. Li; Z. Zhuo; S. Zhao; Y.-G. Wang

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 142 KB
Volume: 5
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200810003

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✦ Synopsis

A passively mode-locked all-solid-state YVO~4~/Nd:YVO~4~ composite crystal laser was realized with a low temperature (LT) In~0.25~Ga~0.75~As semiconductor saturable absorber mirror. The saturable absorber was used as nonlinear absorber and output coupler simultaneously. Both the Q-switch and continuous-wave mode locking operation were experimentally realized. At a pump power of 4 W, the Q-switched mode locking changed to continuous wave mode locking. An average output power of 4.1 W with 5 ps pulse width was achieved at the pump power of 12 W, corresponding to an optical-optical conversion efficiency of 34.2%.

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