We discuss different geometrical structures of optical switches based on two-dimensional photonic crystals with hexagonal geometry of the unit cell and a magneto-optical resonator. Transition between the states on and off in these switches is achieved by an external DC magnetic field. The input and output waveguides can be front–front, side–side, or front–side coupled to the resonator and these different types of coupling can lead to different mechanisms of switching. Analysis of symmetry and scattering matrices of the switches is based on magnetic group theory. Two examples of switches with 60° and 120° bends and their characteristics are also presented.
© 2014 Optical Society of America
Diffraction and Gratings
Original Manuscript: February 18, 2014
Revised Manuscript: April 30, 2014
Manuscript Accepted: May 28, 2014
Published: July 4, 2014
Victor Dmitriev, Gianni Portela, and Raphael Batista, "Magneto-optical resonator switches in two-dimensional photonic crystals: geometry, symmetry, scattering matrices, and two examples," Appl. Opt. 53, 4460-4467 (2014)