Ge-rich silicon germanium as a new platform for optical interconnects on silicon

Vladyslav Vakarin 1 Papichaya Chaisakul 1 Jacopo Frigerio 2 Andrea Ballabio 2 Xavier Le Roux 1 Jean-René Coudevylle 1 Laurent Vivien 1 Giovanni Isella 2 Delphine Marris-Morini 1
1 IEF - Institut d'électronique fondamentale
2 Politecnico di Milano [Milan]
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 Si 1-x Ge x 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.
Keywords : Silicon photonics Germanium Waveguide Bends Mach-Zehnder interferometer
Type de document :
Communication dans un congrès
SPIE Photonics Europe, Apr 2016, Bruxelles, Belgium. Silicon Photonics and Photonic Integrated Circuits V, 9891, SPIE Proceedings. 〈10.1117/12.2228731〉
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Soumis le : vendredi 27 mai 2016 - 08:45:05
Dernière modification le : jeudi 11 janvier 2018 - 06:19:24
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Vladyslav Vakarin, Papichaya Chaisakul, Jacopo Frigerio, Andrea Ballabio, Xavier Le Roux, et al.. Ge-rich silicon germanium as a new platform for optical interconnects on silicon. SPIE Photonics Europe, Apr 2016, Bruxelles, Belgium. Silicon Photonics and Photonic Integrated Circuits V, 9891, SPIE Proceedings. 〈10.1117/12.2228731〉. 〈hal-01322121〉

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