Abstract

The Mach–Zehnder interferometer (MZI) is a common structure for integrated all-optical switches. We proposed and designed an all-optical $2\times 2$ switch that is based on the MZI, multimode interference, and a nonlinear two-mode interference waveguide. The beam propagation method is used to simulate and analyze the device. The results show that the switching action is done properly.

© 2008 Optical Society of America

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