Open AccessNumerical analysis of the performance of Mach-Zehnder interferometric logic gates enhanced with coupled nonlinear ring- resonators
Author(s) -
F. Cuesta-Soto,
Alejandro Martı́nez,
J. Blasco,
J. Martí
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.002323
Subject(s) - resonator , mach–zehnder interferometer , interferometry , optics , nonlinear system , logic gate , physics , power (physics) , electronic engineering , engineering , quantum mechanics
In this paper, the implementation of an all-optical logic gate based on a Mach-Zehnder interferometer (MZI) configuration is addressed with underlying nonlinear slot-waveguides. In order to reduce power consumption requirements, different ring-resonator structures are introduced in the arms of the MZI. A nonlinear Transfer Matrix Method is developed and used to analyze the response of the nonlinear MZI in order to optimize power requirements with maximum bit rates. The numerical analysis shows that a reduction in the switching power from 2.5 W to less than 5 mW can be achieved by a proper design of the ring-resonator structures introduced in the MZI arms. In addition, it is shown that the logic gate can handle bit rates higher than 60 Gbit/s.