title: Simultaneous beam combination and aperture filling of coherent laser arrays by conjugate Dammann gratings.
abstract: A technique for simultaneous beam combination and aperture filling of a coherent laser array that uses a conjugate Dammann grating is proposed. It can convert light from a coherent laser array into a single-lobed far field with high quality. An experiment with a simulated 5x5 2D coherent laser array using an aperture mask has been performed. The feasibility of the proposed scheme is verified. It provides an important basis for achieving a high-power and high-brightness laser beam from an actual coherent laser array.
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, P.O. Box 800-211, Shanghai 201800, China. yanaimin@siom.ac.cn
authors.forename: Aimin
authors.initials: A
authors.lastname: Yan
authors.forename: Liren
authors.initials: L
authors.lastname: Liu
authors.forename: Enwen
authors.initials: E
authors.lastname: Dai
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Sun
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou