The study on the measurement of the laser divergence angle based on the Gaussian model

Wei Tan; Xiao-bing Wang; Bao-hui Zhu; Ding-yi Sheng; Shi-yao Liu; Meng-zhen Zhu

doi:10.1117/12.2230976

26 January 2016 The study on the measurement of the laser divergence angle based on the Gaussian model

Wei Tan, Xiao-bing Wang, Bao-hui Zhu, Ding-yi Sheng, Shi-yao Liu, Meng-zhen Zhu

Proceedings Volume 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015; 97961C (2016) https://doi.org/10.1117/12.2230976
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held November 2015, 2015, Various, China

Abstract

The laser divergence angle is an important parameter of laser beam quality. In order to meet the actual needs of engineering, a method for measuring the laser divergence angle was derived. The laser divergence angle was obtained by measuring the total laser energy and the laser energy behind the aperture. A measuring device was designed for validation. The experimental results showed that the result of the measurement was accurate with an error being smaller than 0.001 mrad . The entire measurement method and the system are simple, easy to operate and can quickly and accurately measure the laser divergence angle. They completely satisfy actual needs.

Citation Download Citation

Wei Tan, Xiao-bing Wang, Bao-hui Zhu, Ding-yi Sheng, Shi-yao Liu, and Meng-zhen Zhu "The study on the measurement of the laser divergence angle based on the Gaussian model", Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97961C (26 January 2016); https://doi.org/10.1117/12.2230976

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