Chinese Optics Letters, 2021, 19 (2): 021403, Published Online: Jan. 4, 2021
7 kHz sub-nanosecond microchip laser amplified by a grazing incidence double pass slab amplifier Download: 893次
Abstract
To obtain short pulse width and high peak power laser, a 7 kHz sub-nanosecond microchip laser amplified by a grazing incidence double pass slab amplifier is experimentally demonstrated in this Letter. We use a compact side-pumped bounce amplifier with grazing incidence beam for achieving high gains and power extraction. Laser output power of 7.37 W at 7 kHz, 1.2 MW pulse peak power with 877 ps duration and 1.05 mJ energy, 25 pm spectral width, and near diffraction limited mode beam quality are achieved, and the optical-to-optical efficiency is 18%. The laser is packaged in a volume of 356 mm × 226 mm × 84 mm and may be used for applications such as laser altimeters and ladar systems.
Xu Liu, Chaoyong Tan, Yong Cheng, Jingsong Wei, Mengzhen Zhu, Xia Chen, Chaowei Mi. 7 kHz sub-nanosecond microchip laser amplified by a grazing incidence double pass slab amplifier[J]. Chinese Optics Letters, 2021, 19(2): 021403.