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Proceedings Paper

Grating couplers in thick rib SOI waveguides for TE and TM polarizations
Author(s): C. Alonso-Ramos; A. Ortega-Moñux; R. Halir; L. Zavargo-Peche; I. Molina-Fernández; P. Cheben; D.-X. Xu; S. Janz
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Paper Abstract

Grating couplers have shown promising performance in terms of coupling efficiency and alignment tolerances as an interface between optical fibers and nanometric silicon-on-insulator (SOI) waveguides. In this paper we review our previous work, where the implementation of a fiber to chip grating coupler in micrometric rib SOI waveguide was demonstrated for the first time, showing measured coupling efficiency of -2.2dB for transverse-electric (TE) polarization. We also propose a new grating design that achieves a calculated coupling efficiency of -2dB for transverse-magnetic (TM) light.

Paper Details

Date Published: 10 May 2012
PDF: 7 pages
Proc. SPIE 8431, Silicon Photonics and Photonic Integrated Circuits III, 84310E (10 May 2012); doi: 10.1117/12.922713
Show Author Affiliations
C. Alonso-Ramos, Univ. de Málaga (Spain)
A. Ortega-Moñux, Univ. de Málaga (Spain)
R. Halir, Univ. de Málaga (Spain)
L. Zavargo-Peche, Univ. de Málaga (Spain)
I. Molina-Fernández, Univ. de Málaga (Spain)
P. Cheben, National Research Council Canada (Canada)
D.-X. Xu, National Research Council Canada (Canada)
S. Janz, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 8431:
Silicon Photonics and Photonic Integrated Circuits III
Laurent Vivien; Seppo K. Honkanen; Lorenzo Pavesi; Stefano Pelli, Editor(s)

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