Optimization of the extinction ratio in a self-switching slab waveguide

Abstract

Planar nonlinear waveguides consisting of a linear substrate, a linear film, and a Kerr-type cladding, end-fire excited by the TE₀ mode of a planar linear waveguide, are studied both numerically and analytically. We show that slab nonlinear waveguides have two different switching modes. The modes depend critically on the normalized wave number; the range of wave numbers that yields the maximum extinction ratio is determined.

© 1993 Optical Society of America

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