title: Performance improvement in a directly 879 nm dual-end-π-polarized-pumped CW and pulsed GdVO₄/Nd:GdVO₄ laser.
abstract: A continuous-wave and Q-switched 10 kHz GdVO₄/Nd:GdVO₄ laser by 879 nm laser-diode pumping was demonstrated. We combined dual-end-π-polarized-pumping, half-wave plate (HWP) insertion, composite laser crystals, and dual Q-switching techniques to obtain a 1.06 μm nanosecond laser with high temporal and spatial quality. A polarization beam splitter was used to divide the unpolarized pump beam into two linearly polarized beams to increase the absorption efficiency. The output performance was improved obviously by inserting a HWP into the cavity. The pulse duration was compressed and the peak power was increased for a doubly Q-switched laser, in contrast to a single acousto-optical Q-switched laser under the same conditions.
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China. mayufei926@163.com
authors.forename: Yufei
authors.initials: Y
authors.lastname: Ma
authors.forename: Xin
authors.initials: X
authors.lastname: Yu
authors.forename: Xudong
authors.initials: X
authors.lastname: Li