Second-harmonic generation in a photorefractive crystal is investigated. It is shown that a fundamental wave that is not in the photorefractive regime can be locked onto a second harmonic, creating a photorefractive effect. This locked state can be manipulated by another harmonic beam to suggest some scanning and routing applications. An interesting split-field method is used to account for the soliton dynamics in a (1+1)D configuration. Numerical simulations are used to confirm analytical results for this case.
© 2002 Optical Society of America
A. D. Boardman, W. Ilecki, and Y. Liu, "Spatial solitons in a photorefractive medium sustaining second-harmonic generation," J. Opt. Soc. Am. B 19, 832-838 (2002)