2 December 1992 Dynamic range of photorefractive holograms for optical signal processing
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Abstract
Results of an experimental investigation of the dynamic range of the photorefractive effect in several ferroelectric crystals are described in the context of adaptive filtering applications. The results indicate a very large (greater than 80 dB) dynamic range for several samples; the dynamic range is shown to be limited by noise processes inherent in the crystals. The large photorefractive dynamic range of the ferroelectric signals investigated should prove useful for signal processing and computing applications.
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John H. Hong, Tallis Y. Chang, Frederick Vachss, "Dynamic range of photorefractive holograms for optical signal processing", Proc. SPIE 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III, (2 December 1992); doi: 10.1117/12.138432; https://doi.org/10.1117/12.138432
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KEYWORDS
Crystals

Signal detection

Digital filtering

Laser crystals

Diffraction

Signal to noise ratio

Optical correlators

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