An Optical Filter Based on a Double Ring Resonator System

Phichai Youplaoa, Sukhum Julajaturasiraratnb

Electrical Engineering Department, Faculty of Industry and Technology, Rajamangala University of Technology Isan

Sakon Nakhon Campus, 199 Moo 3, Phungkon, Sakon Nakhon 47160, Thailand E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

and Yusaku Fuji

School of Science and Technology, Gunma University, Kiryu, Tenjin-cho 1-5-1, 376-8515, Japan This email address is being protected from spambots. You need JavaScript enabled to view it.

Manuscript received July 6, 2015

Revised August 14, 2015

ABSTRACT

An optical filter based on the ring resonator waveguide is proposed. In this study, a Gaussian pulse is used as the optical input signal propagates into a double ring resonator system. The simulation results have shown the filtering signal outputs that can be obtained by using the proposed system. Where the filtering characteristics can be controlled by using the specify parameters, such as the rings radii and the coupling coefficient, of the proposed system. The potential of using such a double ring resonator device for optical communication application is performed and discussed.

Keywords: Ring resonator; optical communication; optical filter.

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