title: Laser beam relaying with phase-conjugate diffractive optical elements.
abstract: A diffractive optical element is used to relay complex laser beam profiles by phase conjugation. It has the advantage over a conventional afocal system of avoiding light concentration at the intermediate focal point. Theoretical and experimental results show that the image quality is a function of alignment errors and mode-size changes. When the optical system is within the calculated tolerances, the diffractive optic reproduces images of high quality.
authors.forename: S
authors.initials: S
authors.lastname: Makki
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.forename: J R
authors.initials: JR
authors.lastname: Leger