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Proceedings Paper

Ge quantum-well waveguide modulator at 1.3μm
Author(s): Mohamed-Said Rouifed; Delphine Marris-Morini; P. Chaisakul; Jacopo Frigerio; Giovanni Isella; Daniel Chrastina; Samson Edmond; Xavier Le Roux; Jean-René Coudevylle; David Bouville; Laurent Vivien
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Paper Abstract

We report on the developments of Ge/SiGe quantum well (QW) waveguide modulators operating at 1.3 μm. First we studied QW structures grown on a 13-μm SiGe buffer on bulk silicon. Light was directly coupled and propagated in the active region. Using a 3-μm wide and 50-μm long modulator, an extinction ratio larger than 4 dB was obtained for a drive voltage lower than 5 V in a 15 nm wavelength range. Then simulations were performed to evaluate the performances of an integrated modulator on silicon on insulator (SOI) platform. An eigenmode expension method was used to model the vertical optical coupling between SOI waveguide and Ge/SiGe devices. It is shown that a reduction of the thickness of the buffer leads to a significant improvement in the performances (extinction ratio, insertion loss) and footprint of the waveguide-integrated devices.

Paper Details

Date Published: 1 May 2014
PDF: 6 pages
Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 91330Q (1 May 2014); doi: 10.1117/12.2052091
Show Author Affiliations
Mohamed-Said Rouifed, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
Delphine Marris-Morini, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
P. Chaisakul, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
Jacopo Frigerio, Politecnico di Milano (Italy)
Giovanni Isella, Politecnico di Milano (Italy)
Daniel Chrastina, Politecnico di Milano (Italy)
Samson Edmond, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
Xavier Le Roux, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
Jean-René Coudevylle, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
David Bouville, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)
Laurent Vivien, Institut d’Electronique Fondamentale, CNRS-Univ. Paris Sud 11 (France)


Published in SPIE Proceedings Vol. 9133:
Silicon Photonics and Photonic Integrated Circuits IV
Laurent Vivien; Seppo Honkanen; Lorenzo Pavesi; Stefano Pelli; Jung Hun Shin, Editor(s)

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