Bright photorefractive spatial solitons in optical waveguides on SBN

Abstract

The steady - state bright spatial solitons have been realized in a planar photorefractive strontium - barium niobate (SBN) waveguide for visible light ranging from 514.5 to 780 nm. The build - up time of the steady - state condition was about 1 s. For wavelength of 1047 nm the strong self - focusing of a light beam was observed. In the time scale of several tens of milliseconds the transient self - trapping of red light was observed that corresponds to the regime of quasi - steady - state solitons. The interaction of the steady - state spatial solitons has been also demonstrated at He - Ne laser wavelength.