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 °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.
© 2005 Optical Society of AmericaFull Article | PDF Article
Akinori Harada, Yasukazu Nihei, Yoji Okazaki, and Hiroaki Hyuga
Opt. Lett. 22(11) 805-807 (1997)
Rui Zhou, Tieli Zhang, Enbang Li, Xin Ding, Zhiqiang Cai, Baigang Zhang, Wuqi Wen, Peng Wang, and Jianquan Yao
Opt. Express 13(25) 10115-10119 (2005)
Martin Maiwald, Sven Schwertfeger, Reiner Güther, Bernd Sumpf, Katrin Paschke, Christian Dzionk, Götz Erbert, and Günther Tränkle
Opt. Lett. 31(6) 802-804 (2006)