Abstract

We present an analysis of photorefractive properties of bulk periodically poled lithium niobate. The results obtained are applied to description and interpretation of phase-matched four-wave processes found recently in this novel nonlinear material. These processes manifest themselves in rings, lines, and dots of light-induced scattering that are essentially different from those known for single-domain crystals. We conclude that periodically poled lithium niobate is a new nonlinear material promising for various photorefractive applications.

© 2002 Optical Society of America

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