Measurement of beam waist of the long focal laser system

Hongying Fan; Hao Zhang; Qi Zhao; Ming Dai

doi:10.1117/12.867768

12 October 2010 Measurement of beam waist of the long focal laser system

Hongying Fan, Hao Zhang, Qi Zhao, Ming Dai

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76565W (2010) https://doi.org/10.1117/12.867768
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

A new application of Hartmann-Shack sensor is introduced to measure the beam waist from the information of measured intensity and phase profile of wavefront. The result is achieved by Fresnel-Kirchhoff diffraction theory with proper numerical approximate algorithm. In this paper, the algorithm is applying to the circumstance of long distance propagation. For this specialty, a simulation process in the case of a Gaussian distributed beam and a thin lens of focal length 100m is presented. And the results show the possibility of this method and the degree the result is affected because of the inevitable error introduced in the measurement.

Citation Download Citation

Hongying Fan, Hao Zhang, Qi Zhao, and Ming Dai "Measurement of beam waist of the long focal laser system", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76565W (12 October 2010); https://doi.org/10.1117/12.867768

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