Continuous Wave Nd:YAGBiBO Blue Laser
under Direct 869 nm Pumping¹

J. Zou^a, *, H. Chu^b, and L. R. Wang^c

^a Electronic and Information Engineering College, Changchun University, Changchun, 130022 China

^b College of Quartermaster Technology, Jilin University, Changchun, 130062 China

^c Management Office of Scientific Research, Changchun University, Changchun, 130022 China

*e-mail: zouji888@sina.com

Received September 27, 2011; in final form, September 28, 2011; published online February 6, 2012

Abstract—We report a blue laser at 473 nm generation by intracavity frequency doubling of a continuous wave
(CW) laser operation of a 946 nm Nd:YAG laser under in-band diode pumping at 869 nm. An BiBO crystal, cut
for critical type I phase matching at room temperature is used for second harmonic generation of the laser. At
an incident pump power of 8.6 W, as high as 721 mW of CW output power at 473 nm is achieved. The optical-
to-optical conversion efficiency is up to 8.4%, and the fluctuation of the blue output power was better than 3.5%
in the given 30 min.

DOI: 10.1134/S1054660X12030322

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