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High-speed modulators and photodetectors based on Ge/SiGe Quantum Wells

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.
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https://hal.archives-ouvertes.fr/hal-01388117
Contributor : Delphine Marris-Morini <>
Submitted on : Wednesday, October 18, 2017 - 3:28:30 PM
Last modification on : Friday, April 10, 2020 - 5:13:31 PM

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  • HAL Id : hal-01388117, version 1

Citation

Delphine Marris-Morini, Vladyslav Vakarin, Papichaya Chaisakul, Jacopo Frigerio, Mumtahina Rahman, et al.. High-speed modulators and photodetectors based on Ge/SiGe Quantum Wells. E-MRS Fall Meeting and Exhibit, Sep 2016, Varsovie, Poland. ⟨hal-01388117⟩

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