Vol. 50, Issue 1, pp. 49-59

Vol. 50 Issue 1 pp. 49-59

Investigation of coupling effect between a unidirectional air waveguide and two cavities with one-way rotating state

Yongfeng Gao, Liu He, Zhen Jiang, Jun Zhou, Yuejia Shi, Wenfang Bai

Keywords

waveguide-cavity coupling, magneto-optical photonic crystal, unidirectional air waveguide, one-way rotating state, finite element method

Abstract

In the paper we present an implementation of resonance coupling between a unidirectional air waveguide and two cavities with one-way rotating state in a two-dimensional dielectric photonic crystal and a magneto-optical photonic crystal. We theoretically calculate the dispersion curves of the line defect waveguide and the dispersion curves of waveguide-cavity interaction, respectively. Numerical simulations show that, via waveguide-cavity coupling, a series of interesting resonance phenomena can be generated in the system. By modifying direction of the applied external magnetic field, storing and discharging of photonic energy can be realized. Our work may provide a practical and useful guidance for optical communications.

Vol. 50
Issue 1
Article No: 04
pp. 49-59

1.6 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology