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Proceedings Paper

Figures of merit for laser beam quality
Author(s): Tomas D. Milster; Edwin P. Walker
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Paper Abstract

We show how FWHM, FW1/e2, Strehl ratio, and encircled energy figures of merit vary with different types of aberration and measurement methods. We examine in detail the array sampling method and the slit-scan method. Our irradiance in the exit pupil of the optical system is a simple Gaussian. We found that in general the slit-scan method and the array method do not yield the same result. The width measurements for the central lobe of the diffraction pattern are very insensitive to aberration.

Paper Details

Date Published: 22 April 1993
PDF: 7 pages
Proc. SPIE 1834, Laser Energy Distribution Profiles: Measurement and Applications, (22 April 1993); doi: 10.1117/12.143841
Show Author Affiliations
Tomas D. Milster, Optical Sciences Ctr./Univ. of Arizona (United States)
Edwin P. Walker, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 1834:
Laser Energy Distribution Profiles: Measurement and Applications
James M. Darchuk, Editor(s)

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