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Proceedings Paper

Acousto-Optic Signal Processing For Radar Applications
Author(s): J. N. Lee; B. J. Udelson; N. J. Berg
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Paper Abstract

Real-time convolvers and correlators having time-bandwidth products of about 10,000 have been achieved by utilizing the acousto-optic Bragg interaction. The large time-bandwidth products were achieved by using specially-designed large-bandwidth transducer arrays deposited onto large (~ 15-cm length), carefully polished crystals of lithium niobate (LiNbO3) and bismuth germanium oxide (BG0). A correlator in which a "live" signal is correlated with a previously stored acoustic signal, by use of the acousto-optic interaction, also has been demonstrated by using a new process for storing acoustic images in LiNbO3. Storage results from the interaction between a high-intensity, short-duration green laser pulse and a surface acoustic wave propagating in the material.

Paper Details

Date Published: 28 December 1977
PDF: 12 pages
Proc. SPIE 0128, Effective Utilization of Optics in Radar Systems, (28 December 1977); doi: 10.1117/12.955984
Show Author Affiliations
J. N. Lee, Harry Diamond Laboratories (HDL) (United States)
B. J. Udelson, Harry Diamond Laboratories (HDL) (United States)
N. J. Berg, Harry Diamond Laboratories (HDL) (United States)

Published in SPIE Proceedings Vol. 0128:
Effective Utilization of Optics in Radar Systems
Bernard W. Vatz, Editor(s)

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