Screening-photovoltaic bright solitons in lithium niobate and associated single-mode waveguides

Abstract

Photorefractive screening-photovoltaic solitons are observed in lithium niobate. Two-dimensional bright circular solitons are formed thanks to a strong static bias field, externally applied, opposite to the photovoltaic internal field. The dynamics of the soliton formation is monitored and compared to a time-dependent numerical model allowing determination of the photovoltaic field. Efficient single mode waveguides are shown to be memorized by the soliton beam for a long time. (C) 2004 American Institute of Physics

On the Duality of Regular and Local Functions

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