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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 9 — Sep. 1, 2005
  • pp: 1824–1833

Strehl ratio of a Gaussian beam

Virendra N. Mahajan  »View Author Affiliations


JOSA A, Vol. 22, Issue 9, pp. 1824-1833 (2005)
http://dx.doi.org/10.1364/JOSAA.22.001824


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Abstract

We discuss the Strehl ratio of systems with a Gaussian pupil and determine the range of validity of its approximate expression based on the aberration variance. The results given are equally applicable to propagation of Gaussian beams. The uniform and weakly truncated pupils are considered as limiting cases of a Gaussian pupil. We show that the approximate expression for Strehl ratio in terms of the aberration variance yields a good estimate of the true value for a strongly truncated pupil but a much smaller value for a weakly truncated pupil.

© 2005 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(050.1960) Diffraction and gratings : Diffraction theory
(080.1010) Geometric optics : Aberrations (global)

History
Original Manuscript: January 21, 2005
Manuscript Accepted: March 18, 2005
Published: September 1, 2005

Citation
Virendra N. Mahajan, "Strehl ratio of a Gaussian beam," J. Opt. Soc. Am. A 22, 1824-1833 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-9-1824

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