title: High-average-power and high-beam-quality Innoslab picosecond laser amplifier.
abstract: We demonstrated a laser-diode, end-pumped picosecond amplifier. With effective shaping of the seed laser, we achieved 73 W amplified laser output at the pump power of 255 W, and the optical-optical efficiency was about 28%. The beam propagation factors M(2) measured at the output power of 60 W in the horizontal direction and the vertical direction were 1.5 and 1.4, respectively.
authors.affiliation: School of Optoelectronics, Beijing Institute of Technology, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Xu
authors.forename: Hengli
authors.initials: H
authors.lastname: Zhang
authors.forename: Yefei
authors.initials: Y
authors.lastname: Mao
authors.forename: Ying
authors.initials: Y
authors.lastname: Yan
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Fan
authors.forename: Jianguo
authors.initials: J
authors.lastname: Xin