TITLE:
Coupling Device with Resonant Cavities Based on Periodic Dielectric Waveguides
AUTHORS:
Ruei-Chang Lu, Yu-Lung Jang
KEYWORDS:
Periodic Dielectric Waveguides; Direction Coupler
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.2B,
July
22,
2013
ABSTRACT:
In this paper, we propose a coupling device based on
periodic dielectric waveguide. In order to reduce the device size, two resonant
cavities are added so that the light can be coupled between two periodic
dielectric waveguides. Plane wave expansion method and two dimension finite difference time domain
methods are used to analyze this device. The coupled
transmission ratio of this device at
the wavelength of 1550 nm is above 94%.