Diode Pumped Nd:Lu_0.5Y_0.5VO₄-LBO Red Laser at 671 nm¹

Y. L. Li^a, *, J. Y. Liu^b, and Y. C. Zhang^a

^a School of OptoElectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China

^b The Second Hospital of Jilin University, Changchun 130041, China

*e-mail: liyongliang1973@163.com

Received October 18, 2011; in final form, October 19, 2011; published online February 6, 2012

Abstract—We report a efficient compact red laser at 671 nm generation by intracavity frequency doubling of
a continuous wave laser operation of a diode pumped Nd:Lu_0.5Y_0.5VO₄ laser on the ⁴F_3/2–⁴I_13/2 transition at
1342 nm. An LBO crystal, cut for critical type I phase matching at room temperature is used for second har-
monic generation of the laser. At an absorbed pump power of 17.8 W, as high as 2.25 W of continuous wave
output power at 671 nm is achieved with 10-mm-long LBO. The optical-to-optical conversion efficiency is up
to 12.6%, and the fluctuation of the red output power was better than 3.6% in the given 30 min.

DOI: 10.1134/S1054660X12030103

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