1 kHz, 12 MW, 300 ps microchip oscillator power amplifier system. (1st October 2022)

• Record Type: Journal Article
• Authors: Zhu, Wentao; Yu, Jun; He, Huijun; Lin, Qingdian; Guo, Xiaoyang; Zhou, Cangtao; Ruan, Shuangchen
• Is Part Of: Laser physics letters. Volume 19:Number 10(2022)
• Publication Date: 2022-10-01
• Subjects: Q-switched -- microchip laser -- neodymium -- diode-pumped; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/ac85dc
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We report a diode-pumped passively Q-switched (PQS) sub-nanosecond master oscillator power amplifier system. The master oscillator is a PQS Nd:YAG/Cr:YAG monolithic microchip laser, yielding a pulse duration of ∼300 ps and pulse energy of 33 μ J at repetition frequency of 1 kHz. After passing two stages end pumped Nd:YVO4 amplifier, the pulse energy is boosted to 3.6 mJ and pulse peak power up to 12 MW with excellent stability (root mean square ∼ 0.14%) and high beam quality ( M 2 < 1.22).