Abstract

In many laser applications it is important to analyze the effect of the aberrations of optical systems which are employed to focus off-axis beams that only partially fill the system aperture. In this paper analytical expressions that give the position of the diffraction focus, peak intensity, and tolerance conditions for uniform and Gaussian beams in an optical system with primary spherical aberration are obtained on the basis of diffraction theory. The results presented are very useful for designing focusing systems for use with laser beams.

© 1982 Optical Society of America

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