Image bearing photorefractive oscillators

S Sternklar, S Weiss, M Segev… - 1986 Intl Optical …, 1987 - spiedigitallibrary.org
We describe various image bearing oscillations originating in one, or two coupled photo-
refractive crystals, which can support phase and amplitude modulation as well as multimode …

Photorefractive oscillation with intracavity image and multimode fiber

B Fischer, S Sternklar, S Weiss - Applied physics letters, 1986 - pubs.aip.org
A photorefractive oscillation between two cascaded passive phase conjugate mirrors
(2CPPCM) with intracavity phase and amplitude modulation and multimode fibers is …

Tunable optical filter for wavelength division multiplexing using photorefractive planar waveguide

S Honma, H Ito, M Komatsu, S Muto… - Nonlinear Optics and …, 2007 - spiedigitallibrary.org
In this paper, we propose a tunable optical filter using a photorefractive planar waveguide.
The index grating generated by the control beam drops off a part of wavelength components …

Ultraviolet Ca K-line narrow-bandwidth imaging filters based on holographic Bragg gratings in photorefractive materials

F Zhao, K Sayano, HE Miller Jr, J Corwin… - Optical …, 1997 - spiedigitallibrary.org
Current narrow-band optical filters for professional solar astronomy applications are
primarily based on Lyot filters. 1 However, the Lyot filter is severely limited in operation at UV …

Low-noise photorefractive amplification and detection of very weak signal beams

S Breugnot, H Rajbenbach, M Defour, JP Huignard - Optics letters, 1995 - opg.optica.org
We present theoretical and experimental analyses of the signal-to-noise ratio (SNR) of
photorefractive two-wave mixing detection that uses BaTiO_3. The influence of beam …

Optical limiters using photorefractive nonlinearities

M Cronin‐Golomb, A Yariv - Journal of applied physics, 1985 - pubs.aip.org
The ability of photorefractive crystals such as barium titanate and strontium barium niobate
to record spatially phase shifted real time holograms with high diffraction efficiency is the …

Photorefractive optical limiters

GJ Salamo, GC Duree, M Morin, EJ Sharp… - MRS Online …, 1994 - cambridge.org
We consider the application of photorefractive beam fanning as an optical limiter. Results
indicate that by focusing the incident laser light into the photorefractive crystal and by …

Photorefractive ring oscillators

M Petrović, M Belić - JOSA B, 1995 - opg.optica.org
We consider the theory of photorefractive ring oscillators, using our unified solution method.
Both unidirectional and bidirectional ring resonators are analyzed, based on the two-wave …

Photorefractive two-beam coupling with applied radio-frequency fields: theory and experiment

J Kumar, G Albanese, WH Steier - JOSA B, 1987 - opg.optica.org
An expression for the gain in photorefractive two-wave mixing when radio-frequency (rf)
electric fields are applied to the material has been derived and compared with experiments …

Pattern discrimination using wavelet filters in a photorefractive joint-transform correlator

R Tripathi, J Joseph, K Singh - Optics communications, 1997 - Elsevier
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 …