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Proceedings Paper

Second-order Bragg waveguide grating as a 1D photonic bandgap structure in SOI waveguide
Author(s): Po Dong; Andrew G. Kirk
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Paper Abstract

A study of the modal reflection, transmission and radiation properties of deeply etched second-order Bragg waveguide gratings in silicon-on-insulator (SOI) slab waveguide is presented. Both the eigenmode expansion method and the finite-difference time-domain method have been used to model this structure. High reflection can be obtained with a very short grating structure. The out-of-plane coupling efficiency and directionality can be controlled by the grating depth and groove shape. This structure has potential for use in micro-cavity laser, compact outcouplers and incouplers, and surface-emitting lasers. We propose an application example which involves a double-grating coupler to realize efficient coupling between vertically integrated SOI waveguides over short distances. Experimental results will be presented.

Paper Details

Date Published: 20 December 2004
PDF: 9 pages
Proc. SPIE 5577, Photonics North 2004: Optical Components and Devices, (20 December 2004); doi: 10.1117/12.567374
Show Author Affiliations
Po Dong, McGill Univ. (Canada)
Andrew G. Kirk, McGill Univ. (Canada)

Published in SPIE Proceedings Vol. 5577:
Photonics North 2004: Optical Components and Devices
John C. Armitage; Simon Fafard; Roger A. Lessard; George A. Lampropoulos, Editor(s)

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