title: Resonantly pumped 1.645 μm single longitudinal mode Er:YAG laser with intracavity etalons.
abstract: We report on a 1.645 μm single longitudinal mode Er:YAG laser that was resonantly pumped by a 1.532 μm fiber laser, using intracavity etalons to generate single longitudinal mode operation. We obtained 0.749 W single longitudinal mode output power at 1.645 μm from an Er:YAG laser with two intracavity etalons. The M2-factors of the Er:YAG laser were 1.041 and 1.068 in the x and y directions, respectively.
authors.affiliation: School of Opto-Electronics, Beijing Institute of Technology, Beijing, China.
authors.forename: Lingni
authors.initials: L
authors.lastname: Zhu
authors.forename: Chunqing
authors.initials: C
authors.lastname: Gao
authors.forename: Ran
authors.initials: R
authors.lastname: Wang
authors.forename: Mingwei
authors.initials: M
authors.lastname: Gao
authors.forename: Yan
authors.initials: Y
authors.lastname: Zheng
authors.forename: Zhengyong
authors.initials: Z
authors.lastname: Wang