A new architecture for photorefractive adaptive filtering is introduced. This architecture is
based on the principle of time-integrating correlator with a photorefractive material as the …

An updatable optical correlator which uses a photorefractive compound semiconductor to
generate real-time matched filters is proposed. Using compound semiconductors offers high …

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 fixed optical correlator Page 1 Appl. Phys. B 70, 379–383 (2000) / Digital
Object Identifier (DOI) 10.1007/s003409900117 Applied Physics B Lasers and Optics © …

A real-time image processing technique has been described, using a two-beam coupling
geometry in photorefractive materials. An erase beam copropagating with the signal beam …

In this paper, we propose a novel high SNR tunable filter using a photorefractive single
crystal fiber with multiple holographic gratings. Since the single crystal fiber which is grown …

We solve the problem of the transmission of time modulated signals in a two-beam coupling
photorefractive set-up using an absorbing material. We obtain an analytical expression that …

A photorefractive time correlation motion detector is demonstrated. This device overcomes
the material response time limitation associated with other photorefractive motion detectors …

A photorefractive frequency converter and phase-sensitive detector is proposed and
demonstrated. Dynamic photorefractive theory is used to examine device characteristics for …

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 …