Optimal phase filtering for high-power laser array far-field distribution

Year: 1993

Authors: Lapucci A., Quercioli F., Jafrancesco D.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: We present numerical simulations of the propagation of the field emitted by laser arrays consisting of a small number of elements. Our computations show how propagation transforms part of an amplitude modulation into a phase modulation. This fact can be used to enhance the central lobe energy in the far field of high-power laser arrays by means of a simple corrective optical element. We discuss optimal filtering conditions and prove that the quarter-Talbot distance generally used in previous studies is not the best choice.

Journal/Review: OPTICS LETTERS

Volume: 18 (20)      Pages from: 1694  to: 1696

KeyWords: Mirrors; Numerical analysis; Optical filters, Far field distributions; Phase filtering, Laser beams
DOI: 10.1364/OL.18.001694

Citations: 18
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