Sun Zhipei, Li Ruining, Bi Yong, Yang Xiaodong, Bo Yong, Hou Wei, Lin Xuechun, Zhang Hongbo, Cui Dafu, Xu Zuyan
Opt Express. 2004 Dec 27;12(26):6428-33. doi: 10.1364/opex.12.006428.
High average power nanosecond pulsed light is obtained using a compact all solid state Nd:YAG laser. The laser is operated in Q-switched mode at the 1.3 micron fundamental and internally frequency tripled using two LiB3O5 (LBO) crystals. 4.3 W average power at 440 nm was demonstrated at 3.5 kHz and a pulse width of 150+/-10 ns (FWHM). The beam quality of M2 value is 5+/-1 in both dimensions. The short-term average power stability of the light source is better than 5.6%. Spectral selecting is proposed to increase production efficiency at 440 nm.
