Abstract

We consider a waveguide array in which defect channels with reduced refractive index are spaced periodically and the light guiding is achieved because of Bragg reflection. We show that tunneling between defects can be inhibited using out-of-phase longitudinal modulation of refractive index exclusively in defect channels. Tunneling inhibition is almost perfect for strongly localized modes with propagation constants close to the gap center.

© 2010 Optical Society of America

Light tunneling inhibition in array of couplers with longitudinal refractive index modulation

Yaroslav V. Kartashov and Victor A. Vysloukh
Opt. Lett. 35(2) 205-207 (2010)

Tunneling inhibition for subwavelength light

Changming Huang, Xianling Shi, Fangwei Ye, Yaroslav V. Kartashov, Xianfeng Chen, and Lluis Torner
Opt. Lett. 38(15) 2846-2849 (2013)

Light tunneling inhibition and anisotropic diffraction engineering in two-dimensional waveguide arrays

Y. V. Kartashov, A. Szameit, V. A. Vysloukh, and L. Torner
Opt. Lett. 34(19) 2906-2908 (2009)

Enhancement and inhibition of light tunneling mediated by resonant mode conversion

Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner
Opt. Lett. 39(4) 933-936 (2014)

Anderson localization in Bragg-guiding arrays with negative defects

Valery E. Lobanov, Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner
Opt. Lett. 37(19) 4020-4022 (2012)