Integrated nonlinear Mach Zehnder for 40 Gbit/s all-optical switching

Lacava, Cosimo and Strain, Michael and Minzioni, Paolo and Cristiani, Ilaria and Sorel, Marc (2013) Integrated nonlinear Mach Zehnder for 40 Gbit/s all-optical switching. Optics Express, 21 (18). pp. 21587-21595. ISSN 1094-4087

[img]
Preview
PDF (LacavaStrainMinzioniCristiani-OpticsExpress2013)
LacavaStrainMinzioniCristiani_OpticsExpress2013.pdf
Final Published Version

Download (4MB)| Preview

    Abstract

    We report on the experimental demonstration of a novel silicon based fully integrated nonlinear Mach Zehnder device. A standard silicon waveguide is used as a nonlinear arm, conversely a large mode SU-8 waveguide acts as a purely linear arm. Given this asymmetry, an intensity dependent phase shift can be introduced between the two interferometric arms. Thanks to a fine tuning of the silicon arm optical properties, a low power, ultrafast, picosecond operation is demonstrated, allowing the use of this device for ultrafast all-optical signal processing in high density communication networks.