Optimal poling of nonlinear photonic crystals for frequency conversion

Abstract

Nonlinear photonic crystals formed by two-dimensional periodic poling of the quadratic susceptibility ${\chi }^{\left(2\right)}$ can support quasi-phase-matched harmonic generation. The frequency-conversion efficiency depends on the photonic crystal’s poling pattern through certain Fourier coefficients of the poling function. A procedure is described for finding those poling patterns that are most efficient for any specific quasi-phase-matched frequency-conversion scheme.

© 2003 Optical Society of America

Two-dimensional poling patterns for 3rd and 4th harmonic generation

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