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Compact continuous-wave blue lasers by direct frequency doubling of laser diodes with periodically poled lithium
Zhenhuan Ye1, Qihong Lou, Jingxing Dong
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800, China. ye_zhenhuan@hotmail.com
Optics Letters
|January 15, 2005
Abstract:
A compact continuous-wave blue laser has been demonstrated by direct frequency doubling of a laser diode with a periodically poled lithium niobate (PPLN) waveguide crystal. The optimum PPLN temperature is near 28 degrees C, and the dependence of waveguide crystals on crystal temperature is less sensitive than that of bulk crystals. A total of 14.8 mW of 488-nm laser power has been achieved.
