Abstract

Optical switches with high switching efficiency and low loss are neccessary for future optical communication systems. Recently, switches with multiple quantum wells (MQW) of different kind (QCSE, BRAQWET, WSL[1]) for higher efficiency are reported, which sometimes suffer of high loss. Here a novel device structure (similar to [2]) will be proposed and investigated theoretically, which may overcome the problem of high cross talk in Mach-Zehnder type interferometer switches on the basis of the above mentioned layers.

© 1993 Optical Society of America