Figures of merit for laser beam quality

Tomas D. Milster; Edwin P. Walker

doi:10.1117/12.143841

22 April 1993 Figures of merit for laser beam quality

Tomas D. Milster, Edwin P. Walker

Proceedings Volume 1834, Laser Energy Distribution Profiles: Measurement and Applications; (1993) https://doi.org/10.1117/12.143841
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

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.

Citation Download Citation

Tomas D. Milster and Edwin P. Walker "Figures of merit for laser beam quality", Proc. SPIE 1834, Laser Energy Distribution Profiles: Measurement and Applications, (22 April 1993); https://doi.org/10.1117/12.143841

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