title: Efficient diode-end-pumped actively Q-switched Nd:YAG/SrWO4/KTP yellow laser.
abstract: An efficient intracavity frequency-doubled Raman laser was obtained by using an SrWO(4) Raman medium, an Nd:YAG ceramic gain medium, and a KTP frequency-doubling medium. Three laser cavities, including a two-mirror cavity, a three-mirror coupled cavity, and a folded cavity, were investigated. With the coupled cavity, a 2.93 W, 590 nm laser was obtained at an incident pump power of 16.2 W and a pulse repetition frequency of 20 kHz; the corresponding conversion efficiency was 18.1%. The highest conversion efficiency of 19.2% was obtained at an incident pump power of 14.1 W and a pulse repetition frequency of 15 kHz. The obtained maximum output power and conversion efficiency were much higher than the results previously obtained with intracavity frequency-doubled solid-state Raman lasers.
authors.affiliation: School of Information Science and Engineering, Shandong University, Jinan, 250100, China.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Cong
authors.forename: Xingyu
authors.initials: X
authors.lastname: Zhang
authors.forename: Qingpu
authors.initials: Q
authors.lastname: Wang
authors.forename: Zhaojun
authors.initials: Z
authors.lastname: Liu
authors.forename: Shutao
authors.initials: S
authors.lastname: Li
authors.forename: Xiaohan
authors.initials: X
authors.lastname: Chen
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Zhang
authors.forename: Shuzhen
authors.initials: S
authors.lastname: Fan
authors.forename: Huaijin
authors.initials: H
authors.lastname: Zhang
authors.forename: Xutang
authors.initials: X
authors.lastname: Tao