The Libraries will be performing routine maintenance on UWSpace on July 15th-16th, 2025. UWSpace will be available, though users may experience service lags during this time. We recommend all users avoid submitting new items to UWSpace until maintenance is completed.
 

Ring Resonators for Integrated Optics Applications

Loading...
Thumbnail Image

Date

2012-01-03T15:30:45Z

Authors

Gad, Michael

Advisor

Journal Title

Journal ISSN

Volume Title

Publisher

University of Waterloo

Abstract

Integrated ring resonators have attracted a considerable interest in optical communications because of their small size and wide range of applicability. Here we consider several aspects of these devices, beginning with a tunable hybrid ring resonators consisting of a silicon over insulator (SOI) ring covered with a polymer layer in a variable electric field. Varying the field changes the polymer refractive index and consequently the resonance condition of the cavity. This device offers a large degree of optical confinement together with a high modulation speed. Subsequently, we design and present fabrication results for a Wavelength Division Multiplexing (WDM) multiplexer/demultiplexer formed from a series of ring resonators with two channels separated by 50 GHz each that is predicted to exhibit a free spectral range (FSR) of 100 GHz , signal dispersion less than 30 ps/nm and a signal cross-talk less than -23 dB. Finally, we analyze the application of the coupled ring waveguide circuit to rotation sensors based on the Sagnac phase shift. Here, however our analysis indicates that a single ring, of the same area exhibits a higher degree of sensitivity to rotational motion than a multiple ring circuit.

Description

Keywords

Ring Resonators, Inttegrated Optics, WDM, Gyroscope

LC Subject Headings

Citation