Low-Crosstalk Designs For Integrated Optical Crossbar Switches

Integrated optical matrix switches can process optical signals whose data rate exceeds 100 Gbit/s, which might be very useful in a multi-computer environment. This paper describes a hybrid design which uses combinations of the conventional switch and a new 2-stage switch for crosstalk suppression in the integrated optical rectangular crossbar matrix switches. Using the hybrid design, we believe that low-crosstalk integrated optical crossbar switches can be fabricated with much relief to the stringent process control.