Abstract

We address light propagation in couplers with longitudinal biharmonic modulation of refractive index in neighboring channels. While simplest single-frequency out-of-phase modulation allows suppression of coupling for a strictly defined set of resonant frequencies, the addition of modulation on multiple frequencies dramatically modifies the structure of resonances. Thus, additional modulation on a double frequency may suppress the primary resonance, while modulation on a triple frequency causes fusion of primary and secondary resonances.

© 2009 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)

Nonlinearity-induced broadening of resonances in dynamically modulated couplers

A. Szameit, Y. V. Kartashov, M. Heinrich, F. Dreisow, R. Keil, S. Nolte, A. Tünnermann, V. A. Vysloukh, F. Lederer, and L. Torner
Opt. Lett. 34(18) 2700-2702 (2009)

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)

Light tunneling inhibition in longitudinally modulated Bragg-guiding arrays

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

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)