title: Hybrid InGaAsP-InP Mach-Zehnder Racetrack Resonator for Thermooptic Switching and Coupling Control.
abstract: An InGaAsP-InP optical switch geometry based on electrical control of waveguide-resonator coupling is demonstrated. Thermooptic tuning of a Mach-Zehnder interferometer integrated with a racetrack resonator is shown to result in switching with ON-OFF contrast up to 18.5 dB. The optical characteristics of this unique design enable a substantial reduction of the switching power, to a value of 26 mW in comparison with 40 mW for a conventional Mach-Zehnder interferometer switch. Modulation response measurements reveal a 3 dB bandwidth of 400 kHz and a rise time of 1.8 micros, comparing favorably with current state-of-the-art thermooptic switches.
authors.forename: William
authors.initials: W
authors.lastname: Green
authors.forename: Reginald
authors.initials: R
authors.lastname: Lee
authors.forename: Guy
authors.initials: G
authors.lastname: Derose
authors.forename: Axel
authors.initials: A
authors.lastname: Scherer
authors.forename: Amnon
authors.initials: A
authors.lastname: Yariv