Unidirectional optical Bloch oscillations in asymmetric waveguide arrays
Document Type
Article
Publication Date
11-15-2011
Abstract
We present an analytical proof of the existence of unidirectional optical Bloch oscillations in a waveguide array system. It is shown that the presence of nonreciprocity in the system allows for a complete normal-mode dephasing in one of the propagation directions, resulting in a unidirectional breakdown in Bloch oscillations. A model system consisting of an array of transversely magnetized asymmetric Si=SiO2 waveguides with a magneto-optic cover layer is presented. Large index contrasts between film and cover are critical for practical realizations. © 2011 Optical Society of America.
Publication Title
Optics Letters
Recommended Citation
Kumar, P.,
&
Levy, M.
(2011).
Unidirectional optical Bloch oscillations in asymmetric waveguide arrays.
Optics Letters,
36(22), 4359-4361.
http://doi.org/10.1364/OL.36.004359
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/13344