Adaptive interferometer based on wave mixing in a photorefractive crystal under alternating electric field

AA Kamshilin, AI Grachev - Applied physics letters, 2002 - pubs.aip.org
Coupling of two waves with different polarization states in a photorefractive crystal under an
ac electric field allows us to achieve the linear transformation of a small transient phase shift …

Orthogonal geometry of wave interaction in a photorefractive crystal for linear phase demodulation

S Di Girolamo, RV Romashko, YN Kulchin… - Optics …, 2010 - Elsevier
We present a novel configuration of an interferometer which is implemented by using
vectorial wave mixing in the orthogonal geometry of wave interaction in a cubic …

Polarization independent phase demodulation using photorefractive two-wave mixing

P Delaye, A Blouin, D Drolet, JP Monchalin… - Applied physics …, 1999 - pubs.aip.org
We describe both theoretically and experimentally a polarization independent
interferometric adaptive photodetector based on photorefractive two-wave mixing. The …

Fast adaptive interferometer with a photorefractive GaP crystal

AA Kamshilin, VV Prokofiev - Optics letters, 2002 - opg.optica.org
The performance of an adaptive interferometer based on mixing of light waves with different
polarization states in a photorefractive GaP crystal at λ= 0.633 µm is described. Both high …

Photorefractive vectorial wave mixing in different geometries

RV Romashko, S Di Girolamo, YN Kulchin… - JOSA B, 2010 - opg.optica.org
We analyze vectorial wave mixing in a photorefractive crystal of cubic symmetry in different
geometries of beam interactions--reflection, transmission, and orthogonal. It is shown that …

Anisotropic nonlinear refractive index measurement of a photorefractive crystal via spatial self-phase modulation

O Boughdad, A Eloy, F Mortessagne, M Bellec… - Optics express, 2019 - opg.optica.org
We show that the refractive index modification photoinduced in a biased nonlinear
photorefractive crystal can be accurately measured and controlled by means of a …

Overcoming the trap density limitation in photorefractive two-beam coupling by applying pulsed electric fields

P Mathey, G Pauliat, JC Launay, G Roosen - Optics communications, 1991 - Elsevier
By applying pulsed electric fields to photorefractive crystals, the two-wave mixing gain is
considerably increased. Unlike other enhancement techniques, the maximum gain is not …

Controlling the self-frequency shift and intensity of oscillations with photorefractive crystals

S Sternklar, S Weiss, B Fischer - Applied optics, 1985 - opg.optica.org
In a previous Letter [1] we described a new type of optical interferometry based on
photorefractive four-wave mixing in a ring cavity and its use as a new optical gyroscope. We …

Linear phase demodulation via reflection photorefractive holograms

RV Romashko, YN Kulchin… - … Effects, Materials, and …, 2005 - opg.optica.org
Theoretical and experimental studying of the vectorial wave mixing in the photorefractive
crystal in the reflection geometry without applying an external electric field is presented. We …

Enhancement of the signal-to-background ratio in photorefractive two-wave mixing by mutually incoherent two-beam coupling

S Breugnot, D Dolfi, H Rajbenbach, JP Huignard… - Optics letters, 1994 - opg.optica.org
We present and experimentally demonstrate a new method for enhancing the signal-to-
background ratio of two-wave mixing in photorefractive crystals. The method uses a mutually …