Frequency-agile rf notch filter that uses photorefractive two-beam coupling clickable element to
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A photorefractive frequency converter and phase-sensitive detector is proposed and
demonstrated. Dynamic photorefractive theory is used to examine device characteristics for …

We discuss here the unidirectional photorefractive ring oscillator taking into account the
finite coherence time of the pumping light source. We exactly solve wave mixing equations …

The operation of novelty filtering is demonstrated using a hybrid optical and digital system.
Dynamic gratings are written in photorefractive Bi 12 SiO 20 at 514 nm and read out at 633 …

Photorefractive quadratic processor for signal recovery from multiplicative complex noise
Page 1 Photorefractive quadratic processor for signal recovery from multiplicative complex …

Rectification of AC signals into DC signals is one of the simplest and the most important
processes in electronics. In electronics it is achieved in two stages: polarity elimination …

We demonstrate a self-organizing photorefractive circuit that demultiplexes a beam that has
two signals imposed on separate optical carrier frequencies into two beams, each …

We propose and demonstrate an optical system that performs adaptive notch filtering for RF
signals, where narrowband interference noise is rejected without knowing a priori its …

We propose and demonstrate the use of wavelet filters for pattern discrimination in a
photorefractive (PR) joint-transform correlator. A PR BaTiO3 crystal has been used to record …

The design of a highly selective synthetic discriminant function (SDF) filter is described for
implementation in an up-dateable correlator based on a non-degenerate four wave mixing …