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Proceedings Paper

Acousto-Optic Signal Processing Device Performance
Author(s): David L. Hecht
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Paper Abstract

Acoustooptic devices provide the function of electrical to optical input transducers in many real-time optical processors of electronic signals. Particular implementations and applications emphasize modulation in space or time connected by a traveling-wave relation. Principal two-dimensional processor.s are spectrum analyzers and correlators. Multiport AO cells are useful in three-dimensional optical processing of two variables, such as frequency and phase. The performance of AO devices is limited by ef5iciency-bandwidth aperture tradeoffs which limit time bandwidths to approximately 10 for most practical devices. High efficiency devices (100%/W) have been developed for bandwidths up to approximately 600 MHz. At wider bandwidths, material attenuation and acoustooptic characteristics sharply limit efficiency, although near ideal piezoelectric transducers can be fabricated.

Paper Details

Date Published: 21 September 1979
PDF: 10 pages
Proc. SPIE 0180, Real-Time Signal Processing II, (21 September 1979); doi: 10.1117/12.957325
Show Author Affiliations
David L. Hecht, Itek Corporation (United States)


Published in SPIE Proceedings Vol. 0180:
Real-Time Signal Processing II
Tien F. Tao, Editor(s)

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