Abstract

We consider light tunneling inhibition in a periodic array of optical couplers due to the specially designed longitudinal and transverse modulation of the refractive index. We show that local out-of-phase longitudinal modulation of refractive index in channels of directional couplers in combination with the global refractive index modulation between adjacent couplers allow simultaneous suppression of both local and global energy tunneling inside each coupler and between adjacent couplers. This enables the localization of light in single waveguide despite the remarkable difference of corresponding local and global energy tunneling rates.

© 2010 Optical Society of America

Light tunneling inhibition in longitudinally modulated Bragg-guiding arrays

Yaroslav V. Kartashov and Victor A. Vysloukh
Opt. Lett. 35(12) 2097-2099 (2010)

Switching management in couplers with biharmonic longitudinal modulation of refractive index

Yaroslav V. Kartashov and Victor A. Vysloukh
Opt. Lett. 34(22) 3544-3546 (2009)

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)

Bloch-wave packet control in truncated modulated optical lattices

Yaroslav V. Kartashov, Victor A. Vysloukh, and Lluis Torner
Opt. Lett. 35(24) 4220-4222 (2010)