Diode-Pumped Single-Frequency Tm:GdVO₄ Laser
at 1897.6 nm¹

F. Chen*, X. L. Liu, L. X. Yu, B. Q. Yao, X. M. Duan, Y. L. Ju, and Y. Z. Wang

National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China

*e-mail: chenfej@163.com

Received August 19, 2011; in final form, August 24, 2011; published online November 28, 2011

Abstract—A diode end-pumped Tm:GdVO₄ laser at room temperature is reported. The maximal output power
of single-frequency is as high as 34 mW by using two uncoated fused etalons, which are respectively 0.05 mm
thick YAG and 1mm thick quartz. We obtained the single frequency Tm:GdVO₄ laser at 1897.6 nm with the
slope efficiency of 1.3%. The single-longitudinal-mode (SLM) laser can be used as a seed laser for coherent
wind measurements and differential absorption LIDAR systems.

DOI: 10.1134/S1054660X12010033

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