High Efficiency 1341 nm Nd:GdVO₄ Laser in-Band
Pumped at 912 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 20, 2011; in final form, October 22, 2011; published online February 6, 2012

Abstract—A high-efficiency 1341 nm Nd:GdVO₄ laser in-band pumped at 912 nm is demonstrated for the first
time. Using an all-solid-state Nd:GdVO₄ laser operating at 912 nm as pump source, 542 mW output was
obtained with 1.14 W absorbed pump power. The slope efficiency with respect to the absorbed pump power was
56.6%, and the fluctuation of the output power was better than 2.6% in the given 30 min. The beam quality fac-
tor M² is 1.15.

DOI: 10.1134/S1054660X12030115

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