title: XOR performance of a quantum dot semiconductor optical amplifier based Mach-Zehnder interferometer.
abstract: The performance of all-optical XOR gate based on quantum-dot (QD) SOA MZI has been simulated. The saturation power, optical gain and phase response of a QD SOA has been analyzed numerically using a rate equation model of quantum dots embedded in a wetting layer. The calculated response is used to model the XOR performance. For the parameters used here, XOR operation at ~ 250 Gb/s is feasible using QD based Mach-Zehnder interferometers. The speed is limited by the relaxation time from wetting layer to the quantum dots.
authors.forename: H
authors.initials: H
authors.lastname: Sun
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Dong
authors.forename: N
authors.initials: N
authors.lastname: Dutta