title: Two-beam combined 3.36  J, 100  Hz diode-pumped high beam quality Nd:YAG laser system.
abstract: In this paper, we develop a diode-pumped all-solid-state high-energy and high beam quality Nd:YAG laser system. A master oscillator power amplifier structure is used to provide a high pulse energy laser output with a high repetition rate. In order to decrease the amplifier working current so as to reduce the impact of the thermal effect on the beam quality, a beam splitting-amplifying-combining scheme is adopted. The energy extraction efficiency of the laser system is 50.68%. We achieve 3.36 J pulse energy at a 100 Hz repetition rate with a pulse duration of 7.1 ns, a far-field beam spot 1.71 times the diffraction limit, and 1.07% energy stability (RMS).
authors.forename: J S
authors.initials: JS
authors.lastname: Qiu
authors.forename: X X
authors.initials: XX
authors.lastname: Tang
authors.forename: Z W
authors.initials: ZW
authors.lastname: Fan
authors.forename: H C
authors.initials: HC
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Liu