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Proceedings Paper

Holographic Beam Shaping For Optical Heterodyne Arrays In Laser Radars
Author(s): Richard J. Becherer; Wilfrid B. Veldkamp
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Paper Abstract

Laser systems using coherent optical heterodyne detection of signals have recently become interesting for a variety of applications including imaging, communications, spectroradiometry, and optical/infrared radar. In a number of these applications it is advantageous to use arrays of detectors to increase angular, snatial, or spectral coverage. Arrays permit this coverage to be increased Tqhile maintaining or reducing requirements on scanner systems, laser pulse rates, and individual detector bandwidths. This paper describes a neviirliolor-,raphic technique for performing the beam shaping in amplitude and phase which is required for high signal-to-noise and high resolution array performance. In this paper we review the holographic beam shaping concept as annlied to heterodyne arrays and its relation to laser radar systems. Experimental results are presented for holographic beam shaping devices using both linear and binary recording techniques.

Paper Details

Date Published: 30 April 1982
PDF: 11 pages
Proc. SPIE 0300, Physics and Technology of Coherent Infrared Radar I, (30 April 1982); doi: 10.1117/12.932590
Show Author Affiliations
Richard J. Becherer, Massachusetts Institute of Technology (United States)
Wilfrid B. Veldkamp, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0300:
Physics and Technology of Coherent Infrared Radar I
Robert C. Harney, Editor(s)

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