Diffracted beam measurements compared with propagation programs

David L. Wright

doi:10.1117/12.143860

22 April 1993 Diffracted beam measurements compared with propagation programs

David L. Wright

Proceedings Volume 1834, Laser Energy Distribution Profiles: Measurement and Applications; (1993) https://doi.org/10.1117/12.143860
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

Laser light through a very small aperture is magnified by a lens, and beam profiles are measured at various points on each side of the image plane. The profiles are compared with the calculations done on several computer propagation programs in common use. While useful results were obtained from all the programs, there were significant differences in the fine structure of the calculated profiles. This was true when comparing programs and also when using the same kind of program with different numbers of transformation points or range of the transform. The difficulty of using simple Gaussian beam propagation theory on diffracted beams is pointed out.

Citation Download Citation

David L. Wright "Diffracted beam measurements compared with propagation programs", Proc. SPIE 1834, Laser Energy Distribution Profiles: Measurement and Applications, (22 April 1993); https://doi.org/10.1117/12.143860

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