Magnetically controlled photonic crystal binary digits generator

In this work, we explore in detail the physical mechanism of the one-way propagating characteristic of a two-dimensional magneto-optical photonic crystal (MOPhC) waveguide, and then design the high-efficiency and wide bandwidth straight waveguide, 90 degrees bent waveguide and splitter. Furthermore, we integrate the above basic component devices together, and design a 4 x 4 magnetically controlled MOPhC binary digits generator. To the best of our knowledge, it is the first time that such kind of device is proposed. This kind of binary digits generator can find wide applications in the future communication. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4734398]