title: High efficiency 165 W near-diffraction-limited Nd:YVO(4) slab oscillator pumped at 880 nm.
abstract: We demonstrate a compact, efficient Nd:YVO(4) stable-unstable hybrid slab oscillator that was partially end pumped at 880 nm. A maximum output power of 165 W at 1064 nm was obtained with an optical-to-optical efficiency from absorbed pump power to laser output of up to 60% and a slope efficiency of up to 66%. The beam propagation factors M(2) were 1.7 in the stable direction and 1.4 in the unstable direction without sidelobes.
authors.affiliation: Department of Physics, Tsinghua University, Beijing, China. zhu-p05@mail.thu.edu.cn
authors.forename: Peng
authors.initials: P
authors.lastname: Zhu
authors.forename: Daijun
authors.initials: D
authors.lastname: Li
authors.forename: Peixin
authors.initials: P
authors.lastname: Hu
authors.forename: Alexander
authors.initials: A
authors.lastname: Schell
authors.forename: Peng
authors.initials: P
authors.lastname: Shi
authors.forename: Claus R
authors.initials: CR
authors.lastname: Haas
authors.forename: Nianle
authors.initials: N
authors.lastname: Wu
authors.forename: Keming
authors.initials: K
authors.lastname: Du