Short-pulse detection by acousto-optic processing

Anthony VanderLugt

doi:10.1117/12.139886

24 August 1992 Short-pulse detection by acousto-optic processing

Anthony VanderLugt

Proceedings Volume 1704, Advances in Optical Information Processing V; (1992) https://doi.org/10.1117/12.139886
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

In this paper we show how the Fresnel transform helps to detect time-delayed short pulse signals. A short pulse disperses spatially as it propagates through free space according to the Fresnel transform. A point photodetector produces a signal whose temporal frequency is directly proportional to the time delay between the pulses. When this signal is fed to an acousto-optic spectrum analyzer, the frequency domain represents a time delay domain.

Citation Download Citation

Anthony VanderLugt "Short-pulse detection by acousto-optic processing", Proc. SPIE 1704, Advances in Optical Information Processing V, (24 August 1992); https://doi.org/10.1117/12.139886

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