Optical misalignment estimation in a time-integrating acousto-optic processor

Andrew M. Kiruluta; Velimir M. Ristic; Jim P. Y. Lee

doi:10.1117/1.601541

1 November 1997 Optical misalignment estimation in a time-integrating acousto-optic processor

Andrew M. Kiruluta, Velimir M. Ristic, Jim P. Y. Lee

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Optical Engineering, Vol. 36, Issue 11, (November 1997). https://doi.org/10.1117/1.601541

An acousto-optic time-integrating correlator with center frequency 80 MHz, bandwidth 40 MHz, time aperture 10 µs, and signal bandwidth 20 MHz was designed and assembled. A novel electronic method for estimating the overall optical misalignment in the processor was devised and tested. It represents a simple and robust alternative to purely optical procedures. The resolution accuracy of the method is limited by the CCD pixel dimensions. As a side result, the scaling law that applies to the output signal when using CCD detection is also derived.

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Andrew M. Kiruluta, Velimir M. Ristic, and Jim P. Y. Lee "Optical misalignment estimation in a time-integrating acousto-optic processor," Optical Engineering 36(11), (1 November 1997). https://doi.org/10.1117/1.601541

Published: 1 November 1997

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