Paper
26 February 1993 Artificial long-delay optical processor
Philipp G. Kornreich, Jacqueline D. Smith
Author Affiliations +
Proceedings Volume 1790, Analog Photonics; (1993) https://doi.org/10.1117/12.141708
Event: Fibers '92, 1992, Boston, MA, United States
Abstract
The Artificial Long Delay Optical Processor (ALDOP) generates a large variable delay of a band limited pulse modulated RF signal. The proposed prototype ALDOP has potential use in a Passive Radio Ranging (PRR) system operating in the 82.5 - 97.5 MHz frequency band. The complete system will combine a passive electronic band pass filter with the optically based ALDOP to impart a unique phase shift to each frequency component of an incoming RF signal. The phase shift is generated using optical heterodyne methods that incorporate the transmission and modulation of light through a series of optical components including an acousto-optical cell and a Fresnel Zone Plate.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Philipp G. Kornreich and Jacqueline D. Smith "Artificial long-delay optical processor", Proc. SPIE 1790, Analog Photonics, (26 February 1993); https://doi.org/10.1117/12.141708
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KEYWORDS
Prisms

Adaptive optics

Phase shifts

Signal processing

Electronic filtering

Radio optics

Mirrors

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