A cw mirrorless oscillation is observed in a photorefractive LiNbO_3: Cu crystal when the
crystal is exposed to two nearly counterpropagating pump waves from an Ar^+ laser. This …

We show that incoherently coupled soliton pairs are possible in biased photorefractive
crystals, under steady‐state conditions. These solitons can propagate in bright‐bright, dark …

A review is given of the present status of the non-linear optical materials and devices, and
their applications for optical signal processing and computing. The primary motivation …

When Arthur Ashkin and his colleagues at Bell Laboratories first noticed the photorefrac tive
effect some 25 years ago, they con sidered the phenomenon a curiosity at best and a …

Conclusions The last few years have witnessed a great renewal of interest in the
photorefractive effect thanks to the realization of the possibility of propagating stable 2D …

Photorefractive materials have been assuming ever increasing prominence in the non-linear
optics field due to their unique capability for displaying strong non-linear effects at milliwatt …

We investigate the stability of both bright and dark beams propagating in bulk media with a
photorefractive nonlinear response, such as crystals. The beams are seen to be unstable …

Steady-state dark (bright) planar spatial solitons are predicted for photorefractive materials
when the diffraction of an optical beam is exactly compensated by nonlinear self-defocusing …

We present an experimental study of steady-state dark photorefractive screening solitons
trapped in a bulk strontium barium niobate crystal. We compare experimental measurements …

Sinusoidal intensity oscillations of the phase conjugated wave reflected from a self-pumped
photorefractive BaTiO 3 crystal have been observed. The oscillation amplitude is shown to …