Mr. Zhuo Yang Profile

Zhuo Yang

at Wuhan Mechanical School

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Proceedings Article | 15 November 2017 Paper

Influence of fundamental mode fill factor on disk laser output power and laser beam quality

Zhiyong Cheng, Zhuo Yang, Xichun Shao, Wei Li, Mengzhen Zhu

Proceedings Volume 10605, 106052R (2017) https://doi.org/10.1117/12.2294031

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An three-dimensional numerical model based on finite element method and Fox-Li method with angular spectrum diffraction theoy is developed to calculate the output power and power density distribution of Yb:YAG disk laser. We invest the influence of fundamental mode fill factor(the ratio of fundamental mode size and pump spot size) on the output power and laser beam quality. Due to aspherical aberration and soft aperture effect in laser disk, high beam quality can be achieve with relative lower efficiency. The highest output power of fundamental laser mode is influenced by the fundamental mode fill factor. Besides we find that optimal mode fill factor increase with pump spot size.

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