Abstract : Recent advances in the theoretical and experimental studies of Ge/SiGe quantum wells structures will be presented with a focus on optical telecommunication applications. Firstly, high-speed stand-alone Ge/SiGe QW electro-absorption modulators and photodetectors will be reported. It will be followed by the presentation of different methods for engineering Ge/SiGe QW to tune the operating wavelength to 1.3 µm. Then the demonstration of a strong electro-refraction Ge/SiGe QW will be reported. This effect could be used to achieve optical modulation but requires the embedding of the QWs in a Mach-Zehnder interferometer. Finally it will be shown that these active devices can be combined with advanced passive structures using Ge-rich SiGe virtual substrate on graded buffer as a waveguide.
Type de document :
Communication dans un congrès
E-MRS Fall Meeting and Exhibit, Sep 2016, Varsovie, Poland. 2016
https://hal.archives-ouvertes.fr/hal-01388117
Contributeur : Delphine Marris-Morini
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Soumis le : mercredi 18 octobre 2017 - 15:28:30
Dernière modification le : jeudi 11 janvier 2018 - 06:28:16
