Propagation Of Generally Astigmatic Gaussian Beams Along Skew Ray Paths

Alan W. Greynolds

doi:10.1117/12.949614

10 May 1986 Propagation Of Generally Astigmatic Gaussian Beams Along Skew Ray Paths

Alan W. Greynolds

Proceedings Volume 0560, Diffraction Phenomena in Optical Engineering Applications; (1986) https://doi.org/10.1117/12.949614
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

The propagation of a Gaussian beam through an asymmetric optical system results in a generally or "twisted"" astigmatic beam whose elliptical spot rotates as it propagates in free space. A general mathematical form for this beam is derived by applying the angular spectrum approach to the paraxialized wave equation. This result is compared to those derived by other researchers and it is found that the beam can be equivalently represented by a set of paraxial rays traced about the central beam ray. The application of general Gaussian beam propagation to the analysis of non-Gaussian beam propagation in arbitrary optical systems is also discussed.

Citation Download Citation

Alan W. Greynolds "Propagation Of Generally Astigmatic Gaussian Beams Along Skew Ray Paths", Proc. SPIE 0560, Diffraction Phenomena in Optical Engineering Applications, (10 May 1986); https://doi.org/10.1117/12.949614

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