7 kHz sub-nanosecond microchip laser amplified by a grazing incidence double pass slab amplifier

• 作者: Xu Liu Chaoyong Tan Yong Cheng Jingsong Wei Mengzhen Zhu Xia Chen Chaowei Mi
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: Lasers,Optical Amplifiers,and Laser Optics
• 页码范围: 40-44
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202119.021403

摘要

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 Nd:YVO4 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 dif-fraction 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.