Acousto-Optic Signal Processing For Radar Applications

J. N. Lee; B. J. Udelson; N. J. Berg

doi:10.1117/12.955984

28 December 1977 Acousto-Optic Signal Processing For Radar Applications

J. N. Lee, B. J. Udelson, N. J. Berg

Proceedings Volume 0128, Effective Utilization of Optics in Radar Systems; (1977) https://doi.org/10.1117/12.955984
Event: Effect Utilization of Optics in Radar Systems, 1977, Huntsville, United States

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.

Citation Download Citation

J. N. Lee, B. J. Udelson, and N. J. Berg "Acousto-Optic Signal Processing For Radar Applications", Proc. SPIE 0128, Effective Utilization of Optics in Radar Systems, (28 December 1977); https://doi.org/10.1117/12.955984

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