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Proceedings Paper

New concepts in silicon component design using subwavelength structures
Author(s): Iñigo Molina-Fernandez; Robert Halir; Alejandro Ortega-Moñux; Luis Zavargo-Peche; Sebastian Romero García; Alejandro Maese-Novo; Diego Perez-Galacho; Gonzalo Wanguemert-Perez; Pavel Cheben; Dan-Xia Xu
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Paper Abstract

Subwavelength gratings (SWG) are periodically segmented waveguides with a pitch small enough to suppress diffraction. These waveguides can be engineered to implement almost any refractive between the refractive indices of the material that compose the waveguide, thereby opening novel design possibilities. In this communication we explore the use of SWGs in the design and optimization of a variety of integrated optical devices in the silicon-on-insulator platform: fiber-to-chip grating couplers, polarization splitters and high performance multimode interference couplers. We furthermore show that the dispersion properties of SWGs enable the design of novel filters, and discuss the design of low transitions between SWG waveguides of different characteristics.

Paper Details

Date Published: 2 February 2012
PDF: 6 pages
Proc. SPIE 8266, Silicon Photonics VII, 82660E (2 February 2012); doi: 10.1117/12.906785
Show Author Affiliations
Iñigo Molina-Fernandez, Univ. de Málaga (Spain)
Robert Halir, Univ. de Málaga (Spain)
Alejandro Ortega-Moñux, Univ. de Málaga (Spain)
Luis Zavargo-Peche, Univ. de Málaga (Spain)
Sebastian Romero García, Univ. de Málaga (Spain)
Alejandro Maese-Novo, Univ. de Málaga (Spain)
Diego Perez-Galacho, Univ. de Málaga (Spain)
Gonzalo Wanguemert-Perez, Univ. de Málaga (Spain)
Pavel Cheben, National Research Council Canada (Canada)
Dan-Xia Xu, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 8266:
Silicon Photonics VII
Joel Kubby; Graham Trevor Reed, Editor(s)

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