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30 April 1982 Holographic Beam Shaping For Optical Heterodyne Arrays In Laser Radars
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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.
© (1982) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard J. Becherer and Wilfrid B. Veldkamp "Holographic Beam Shaping For Optical Heterodyne Arrays In Laser Radars", Proc. SPIE 0300, Physics and Technology of Coherent Infrared Radar I, (30 April 1982); https://doi.org/10.1117/12.932590
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