title: Single frequency 1645 nm Er:YAG nonplanar ring oscillator resonantly pumped by a 1470 nm laser diode.
abstract: A 1645 nm Er:YAG nonplanar ring oscillator, resonantly pumped by a 1470 nm laser diode, is reported. By using a 0.5%-doped Er:YAG nonplanar ring resonator, a 0.284 W single-frequency laser output at 1645 nm was obtained with a slope efficiency of 42.1%. The beam quality in x and y directions were 1.064 and 1.039, respectively.
authors: School of Opto-Electronics, Beijing Institute of Technology, Beijing 100081, China.
authors: Yan
authors: Y
authors: Zheng
authors: Chunqing
authors: C
authors: Gao
authors: Ran
authors: R
authors: Wang
authors: Mingwei
authors: M
authors: Gao
authors: Qing
authors: Q
authors: Ye