title: Holographic phase conjugation and Strehl ratio.
abstract: Deformable-mirror adaptive optic systems strive to correct the phase at every point of the aperture. Calculations exist which relate the system performance to the spatial-frequency response of the mirror. Adaptive systems such as holographic devices; which form the complete complex conjugate of the impressed wave front, require a different treatment. The Strehl ratio for such a system is calculated in terms of the device optical-transfer function. The systems are compared in the limit of photon shot noise.
authors.affiliation: Lockheed Research Laboratory, Palo Alto, California 94304-1189, USA.
authors.forename: D
authors.initials: D
authors.lastname: Armitage