title: Continuous-wave, 15.2 W diode-end-pumped Nd:YAG laser operating at 946 nm.
abstract: A high-power continuous-wave (cw) Nd:YAG laser operating at 946 nm by utilizing a quasi-three-level transition is reported. The laser consists of a composite Nd:YAG rod end pumped by a fiber-coupled diode laser and a simple plane-concave cavity. At an incident pump power of 40.2 W, a maximum cw output of 15.2 W at 946 nm is obtained, achieving a slope efficiency of 45%. To the best of our knowledge, this is the highest output at 946 nm ever generated by diode-pumped Nd:YAG lasers. In addition, at an incident pump power of 15.2 W, a 1.25 W blue output at 473 nm is achieved with a simple compact three-element cavity and a type-I lithium triborate (LiB(3)O(5)) crystal as a frequency doubler.
authors.affiliation: Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tinajin University, Tianjin 300072, China. zhourui_laser@126.com
authors.forename: Rui
authors.initials: R
authors.lastname: Zhou
authors.forename: Enbang
authors.initials: E
authors.lastname: Li
authors.forename: Haifeng
authors.initials: H
authors.lastname: Li
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Jianquan
authors.initials: J
authors.lastname: Yao