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Optical Engineering

Laser Detection by Coherence Discrimination
Author(s): Robert Crane, Jr.
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Paper Abstract

The axial coherence length of laser radiation is both specific and unique to lasers. An angle-scanned interferometer is described as a coherent energy modulator in a coherence-discriminating laser receiver. A symmetrical solid-spaced Fabry-Perot interferometer etalon is used. Etalon pairs are used in a logic arrangement that passes coherent laser signals and rejects incoherent background signals. Two pairs of stepped etalons are used to detect a single laser pulse. The fundamental limits of performance of this type of laser receiver are listed.

Paper Details

Date Published: 1 April 1979
PDF: 6 pages
Opt. Eng. 18(2) doi: 10.1117/12.7972352
Published in: Optical Engineering Volume 18, Issue 2
Show Author Affiliations
Robert Crane, Jr., The Perkin-Elmer Corporation (United States)


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