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Proceedings Paper

Measurement of beam waist of the long focal laser system
Author(s): Hongying Fan; Hao Zhang; Qi Zhao; Ming Dai
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Paper 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.

Paper Details

Date Published: 13 October 2010
PDF: 5 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76565W (13 October 2010); doi: 10.1117/12.867768
Show Author Affiliations
Hongying Fan, Southwest Institute of Technical Physics (China)
Hao Zhang, Sichuan Univ. (China)
Qi Zhao, Sichuan Univ. (China)
Ming Dai, Southwest Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

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