A two-beam coupled photorefractive novelty filter is presented for real-time measurement of
displacement components. In the optical configuration, the BaTiO 3 crystal is oriented such …

We present and characterize theoretically and experimentally a photorefractive velocimeter.
This device, based on two-wave mixing in a rapid photorefractive crystal, measures the …

A method for extending the velocity range of motion detection by an optical tracking novelty
filter is described. Separate photorefractive crystals are used as phase-conjugate mirrors in …

We propose and demonstrate a new configuration of a photorefractive time-integrating
correlator system using acousto-optic devices to process rf signals. In our system, two rf …

We proposed and experimentally studied a technique of vibration object monitoring. The
technique is based on self-diffraction of the speckle pattern on the adaptive correlation filter …

TLT Kttartpcleiagmetn a Page 1 174 m Thursday, October 7, 1993 OSA Annual Meeting
Technical Digest arbitrart signals and caltculation of the auto- presentation, both theorx and …

Frequency detuning effects in photorefractive oscillators are used in a new type of (passive)
interferometry which converts optical path length changes to frequency shifts, Such an …

An optical method for vibration detection and spectral analysis based on photorefractive
frequency domain processing is presented. The method utilizes the photorefractive effect in …

We have constructed an all-optical tracking novelty filter based on the dynamic holographic
properties of an efficient and fast infrared-sensitive photorefractive polymer. The …

A new photorefractive joint transform correlator architecture using a photorefractive crystal
as a reference image storage or sequentially image updating device instead of a joint …