Abstract

We have obtained stationary bright spatial solitons in a planar photorefractive strontium barium niobate waveguide for visible light ranging from 514.5 to 780  nm. Even for larger wavelengths λ=1047 nm strong self-focusing of the beam was observed; however, input power had to be some orders of magnitude higher than for visible light for self-focusing to occur. Furthermore, we found transient self-trapping of red light λ=632.8 nm that corresponds to the formation of bright quasi-steady-state solitons.

© 1998 Optical Society of America

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