Compact Mach-Zehnder space switch combining bandfilling and the quantum confined stark effect

R. Prasanth, J.E.M. Haverkort, J.H. Wolter

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Integrated optical crossconnects and add-drop multiplexers require low-loss polarization independent MZI space switches. We have developed a quantum well material in which the electrorefraction due to the Quantum Confined Stark Effect and bandfilling are added. The operating wavelength in an undoped InGaAs/InAsP quantum well was first determined by limiting the excess waveguide loss to 0.2 dB/cm and the electroabsorption loss to 0.1 dB/mm. Without doping, a polarization independent Dn of 7.8.10-4 was obtained at 100 kV/cm. Bandfilling increases Dn to 2.10-3 at 100 kV/cm, resulting in a phase shifter length of 0.46 mm in push pull configuration.
Original languageEnglish
Title of host publicationProceedings of the 6th annual symposium of the IEEE/LEOS Benelux Chapter, 3-18 December 2001, Brussels, Belgium
EditorsH. Thienpont, F. Berghmans, J. Danckaert, L. Desmet
Pages21-24
Publication statusPublished - 2001
Event6th Annual Symposium of the IEEE/LEOS Benelux Chapter - Brussels, Belgium
Duration: 3 Dec 20013 Dec 2001
Conference number: 6

Conference

Conference6th Annual Symposium of the IEEE/LEOS Benelux Chapter
Country/TerritoryBelgium
CityBrussels
Period3/12/013/12/01

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