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Proceedings Paper

Ge-rich silicon germanium as a new platform for optical interconnects on silicon
Author(s): Vladyslav Vakarin; Papichaya Chaisakul; Jacopo Frigerio; Andrea Ballabio; Xavier Le Roux; Jean Rene Coudevylle; Laurent Vivien; Giovanni Isella; Delphine Marris-Morini
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Paper Abstract

We propose germanium-rich silicon-germanium (SiGe) as a new platform for optical interconnects. The platform viability is experimentally and theoretically investigated through the realization of main building blocks of passive circuitry. Germanium-rich Si1-xGex guiding layer on a graded SiGe layer is used to experimentally show 12μm radius bends by light confinement tuning at a wavelength of 1550nm. As a next step, Mach Zehnder interferometer with 10 dB extinction ratio is demonstrated. High Ge content of the proposed platform allows the coupling with Ge-based active devices, relying on a high quality epitaxial growth. Hence, the integration on Silicon of high speed and low power consumption Ge-rich active components is possible, despite the high lattice mismatch between silicon and germanium.

Paper Details

Date Published: 13 May 2016
PDF: 8 pages
Proc. SPIE 9891, Silicon Photonics and Photonic Integrated Circuits V, 98910M (13 May 2016); doi: 10.1117/12.2228731
Show Author Affiliations
Vladyslav Vakarin, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)
Papichaya Chaisakul, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)
The Univ. of Tokyo (Japan)
Jacopo Frigerio, Politecnico di Milano (Italy)
Andrea Ballabio, Politecnico di Milano (Italy)
Xavier Le Roux, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)
Jean Rene Coudevylle, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)
Laurent Vivien, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)
Giovanni Isella, Politecnico di Milano (Italy)
Delphine Marris-Morini, Institut d'Électronique Fondamentale, Univ. Paris Sud 11, CNRS, Univ. Paris Saclay (France)


Published in SPIE Proceedings Vol. 9891:
Silicon Photonics and Photonic Integrated Circuits V
Laurent Vivien; Lorenzo Pavesi; Stefano Pelli, Editor(s)

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