Share Email Print
cover

Proceedings Paper

SWG dispersion engineering for ultra-broadband photonic devices
Author(s): Robert Halir; Alejandro Maese-Novo; Sebastián Romero-García; Diego Pérez-Galacho; Luis Zavargo-Peche; Alejandro Ortega-Moñux; Íñigo Molina-Fernández; J. Gonzalo Wangüemert-Pérez; Pavel Cheben
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In most integrated optics platforms device design is restricted to variations in the lateral dimensions, and a small set of etch depths. Sub-wavelength gratings (SWGs) in silicon-on-insulator enable engineering of refractive index in a wide range. SWGs exhibit a pitch smaller than the wavelength of light propagating through them, thereby suppressing diffraction and acting as a homogenous medium with an equivalent refractive index controlled by the duty-cycle. Here, we propose to not only engineer refractive index, but to control SWG dispersion. We use this concept to design ultra-broadband directional couplers (DCs) and multimode interference couplers (MMIs) with a fivefold bandwidth enhancement compared to conventional devices.

Paper Details

Date Published: 22 May 2013
PDF: 7 pages
Proc. SPIE 8767, Integrated Photonics: Materials, Devices, and Applications II, 87670R (22 May 2013); doi: 10.1117/12.2017229
Show Author Affiliations
Robert Halir, Univ. de Málaga (Spain)
The Andalusian Ctr. for Nanomedicine and Biotechnology (Spain)
Alejandro Maese-Novo, Univ. de Málaga (Spain)
Sebastián Romero-García, Univ. de Málaga (Spain)
Diego Pérez-Galacho, Univ. de Málaga (Spain)
Luis Zavargo-Peche, Univ. de Málaga (Spain)
Alejandro Ortega-Moñux, Univ. de Málaga (Spain)
The Andalusian Ctr. for Nanomedicine and Biotechnology (Spain)
Íñigo Molina-Fernández, Univ. de Málaga (Spain)
The Andalusian Ctr. for Nanomedicine and Biotechnology (Spain)
J. Gonzalo Wangüemert-Pérez, Univ. de Málaga (Spain)
Pavel Cheben, National Research Council Canada (Canada)


Published in SPIE Proceedings Vol. 8767:
Integrated Photonics: Materials, Devices, and Applications II
Jean-Marc Fédéli; Laurent Vivien; Meint K. Smit, Editor(s)

© SPIE. Terms of Use
Back to Top