Open Access1D periodic structures for slow-wave induced non-linearity enhancement
Author(s) -
Jaime Lora García,
Pablo Sanchís,
Alejandro Martı́nez,
J. Martí
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.003146
Subject(s) - optics , bandwidth (computing) , linearity , group velocity , reduction (mathematics) , dispersion (optics) , slow light , physics , materials science , telecommunications , photonic crystal , computer science , mathematics , geometry , quantum mechanics
A comparison between several 1D periodic structures designed to enhance non-linear effects for high-speed all-optical applications is presented. These structures allow for a small group velocity of the propagating waves, so the light-matter interaction is increased, making the non-linear process to be more efficient. In addition, the propagating wave is compressed, making the field intensity to be higher in the non-linear material. Thus, a significant reduction in both the structure length and the input power needed to induce a particular phase shift is achieved. The selected 1D periodic structures are compared by means of properties such as the modal effective volume, coupling efficiency, mode bandwidth, group velocity dispersion, and easiness of fabrication, in order to determine the optimum configuration in terms of non-linear enhancement.