title: Edge enhancement of a phase-conjugate image with a mutually pumped phase conjugator.
abstract: Usually edge enhancement of optical images is produced by introduction of loss into the low spatial frequency components of the image-bearing beam in the Fourier plane of a lens. We report on edge-enhanced phase-conjugate images from a mutually pumped conjugator accomplished by spatial filtering in the Fraunhofer diffraction region of the input beams. High-resolution (128-160 lines/mm) edge-enhanced images are obtained through traditional spatial filtering in the Fourier plane and in the Fraunhofer regime. Amplification of these edge-enhanced images is observed with some loss of high spatial resolution (50 lines/mm).
authors.forename: J M
authors.initials: JM
authors.lastname: Yarrison-Rice
authors.forename: E J
authors.initials: EJ
authors.lastname: Sharp
authors.forename: G L
authors.initials: GL
authors.lastname: Wood
authors.forename: R R
authors.initials: RR
authors.lastname: Neurgaonkar