Resonantly Pumped Single Frequency Er:YAG Laser
at 1645 nm¹

B. Q. Yao*, X. L. Liu, L. X. Yu, X. H. Sun, Z. Y. Chen, Y. L. Ju, and Y. Z. Wang

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

*e-mail: yaobq08@hit.edu.cn

Received September 7, 2011; in final form, September 14, 2011; published online December 28, 2011

Abstract—An efficient and single frequency Er:YAG laser pumped by an MGo:PPLN laser locked at 1532nm
with double F–P etalons was reported. The Er:YAG laser operated at 1645 nm, 550 mW of 1645 nm output was
achieved under total incident pump power of 7 W. Using the etalons, 45 mW single frequency 1645.1 nm laser
was achieved.

DOI: 10.1134/S1054660X12020235

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