Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11023520 | Optik - International Journal for Light and Electron Optics | 2019 | 7 Pages |
Abstract
In order to obtain a 1053ânm output laser with a high beam quality, the mode distribution of the YLF solid laser with a plane-plane resonator is studied. According to the Collins theory, the influences of the position and size parameters of a Gaussian aperture on the mode of the output beam is simulated and analyzed. Compared with the simulation results without a Gaussian aperture, the Gaussian aperture in the cavity can significantly improve the quality of the output laser. Based on the theoretical simulations, a laser with optimal structural parameters is built. The profiles and mode distributions of the laser output beams with a Gaussian aperture and without a Gaussian aperture in the cavity are measured, respectively. When the radius of the light spot on the film of the Gaussian aperture is 4âmm and the distance between the Gaussian aperture and total-reflection mirror is 30âmm, a 1053ânm laser output with the values of M2 in the x and y directions of 1.9 and 1.8, and maximum output power of 9.7âW is obtained. The experimental results demonstrate that the Gaussian aperture in the cavity can improve the mode distribution of the cavity and obtain the laser output with a higher beam quality, which is basically consistent with the results of theoretical simulations.
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Authors
Qin Dai, Shanchun Zhang, Yeqiu Li, Jianfeng Cui, Ribo Ning, Rina Wu,