Abstract

The possibility of using acoustooptic techniques for recording and comparing high-speed digital data is explored. Suitable architectures for high-speed acoustooptic (AO) comparators capable of determining the occurrence, nature, and location of errors are presented. The analysis indicates that the AO Bragg cell must have a minimum center frequency of twice the data clock frequency and a minimum bandwidth equal to the clock frequency. Initial experimental results verify the analysis and demonstrate the feasibility of the proposed techniques at clock frequencies of at least 330 MHz. Available AO technology should allow the application of this approach at clock frequencies in excess of 1 GHz.

© 1986 Optical Society of America

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