title: Efficient high-energy passively Q-switched Yb:GdCa4O(BO3)3 laser.
abstract: A compact diode-pumped high-pulse-energy Yb:GdCa(4)O(BO(3))(3) laser passively Q-switched with a Cr(4+):YAG saturable absorber is demonstrated at room temperature. An output power of 1.05 W is generated at a pulse repetition rate of 2.5 kHz when the pump power absorbed is 7.7 W, with a slope efficiency determined to be 40%. The laser pulse generated is 10.0 ns in duration, with pulse energy as high as 420 μJ and peak power amounting to 42 kW.
authors.affiliation: College of Physics, Qingdao University, Qingdao, China. junhai_liu@hotmail.com
authors.forename: Junhai
authors.initials: J
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Wan
authors.forename: Qibiao
authors.initials: Q
authors.lastname: Dai
authors.forename: Xueping
authors.initials: X
authors.lastname: Tian
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Han
authors.forename: Huaijin
authors.initials: H
authors.lastname: Zhang