Accession Number : AD0864397

Title :   Opto-Acoustic Correlation Devices.

Descriptive Note : Technical publication Oct 67-Aug 68,

Corporate Author : NAVAL UNDERSEA RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Personal Author(s) : Byram, G. W.

Report Date : JAN 1970

Pagination or Media Count : 19

Abstract : Opto-acoustic devices show considerable promise for high-bandwidth signal processing in radar and sonar. Their potential compactness permits consideration for torpedo use as well as fixed installation use. The physical structure of such devices is examined, with emphasis on the basic sound-light interaction. Problems with existing bulk-wave techniques are examined, and a proposed surface-wave technique is described. This interaction, based on optical tunneling, avoids many performance limitations imposed by the thickness of a bulk wave. The technique is currently limited by the difficulty of generating sufficiently large surface waves. (Author)

Descriptors :   (*RADAR SIGNALS, DATA PROCESSING), (*SONAR SIGNALS, DATA PROCESSING), (*CORRELATORS, OPTICAL EQUIPMENT), DIFFRACTION, INTERACTIONS, ELECTROACOUSTIC TRANSDUCERS, CORRELATION TECHNIQUES, AMPLITUDE MODULATION, BROADBAND, UNDERWATER SOUND GENERATORS.

Subject Categories : Acoustics
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE