The irradiance distribution along the optical axis, or the Strehl ratio versus defocus, of a rotationally symmetric system is described in terms of a phase-space representation: Woodward’s ambiguity function. We show that the Fourier spectrum of the Strehl ratio versus defocus for variable spherical aberration can be analyzed from a single picture. This result is applied to analyze the use of shade pupils for reducing the influence of spherical aberration.
© 1987 Optical Society of America
Original Manuscript: March 18, 1986
Manuscript Accepted: August 21, 1986
Published: February 1, 1987
J. Ojeda-Castañeda, P. Andrés, and E. Montes, "Phase-space representation of the Strehl ratio: ambiguity function," J. Opt. Soc. Am. A 4, 313-317 (1987)