About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Journal of Lightwave Technology
Paper
Nanosecond-Scale Mach-Zehnder-Based CMOS Photonic Switch Fabrics
Abstract
We describe Mach-Zehnder-based silicon photonic switch fabrics monolithically integrated with a digital CMOS logic and driver circuitry. We review 2 × 2 Mach-Zehnder switches, 2 × 2 nested Mach-Zehnder switches, and strictly nonblocking 4 × 4 switch fabrics with nanosecond-scale, low-power, low-crosstalk, and low-insertion-loss performances. We also demonstrate fast dynamic reconfigurability on an 8 × 8 butterfly switch fabric. Technical challenges and future research directions of silicon photonic scaled switching systems are also discussed.