Chinese Optics Letters, 2024, 22 (1): 011402, Published Online: Jan. 19, 2024  

Watt-level acousto-optically Q-switched Pr:YLF laser at 639 nm

Author Affiliations
Department of Electronic Engineering, School of Electronic Science and Engineering (National Model Microelectronics College), Xiamen University, Xiamen 361005, China
Abstract
We present a study on a watt-level acousto-optically Q-switched Pr:YLF laser at three different repetition rates (10 kHz, 20 kHz, and 50 kHz) for the first time, to the best of our knowledge. The corresponding average output powers and pulse widths were measured to be 1.14 W, 1.2 W, and 1.32 W, and 40 ns, 52 ns, and 80 ns, respectively. A maximum pulse energy of 0.11 mJ was obtained, corresponding to a peak power of up to 2.8 kW at a repetition rate of 10 kHz. The simulated dynamics of a fast Q-switched Pr:YLF laser is in agreement with the experiment. The laser’s ability to generate stable pulses with high peak power and short pulse width makes it highly desirable for various practical applications, such as laser machining and material processing.

Yuchen Xue, Ruisong Zhang, Zhengdong Dai, Zhongyu Wang, Huiying Xu, Zhiping Cai. Watt-level acousto-optically Q-switched Pr:YLF laser at 639 nm[J]. Chinese Optics Letters, 2024, 22(1): 011402.

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