Open AccessAll-optical tunability of a nonlinear photonic crystal channel drop filter
Author(s) -
Nicolae C. Panoiu,
Mayank Bahl,
Richard M. Osgood
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.001605
Subject(s) - photonic crystal , optics , waveguide , materials science , optical filter , nonlinear system , photonic integrated circuit , optoelectronics , photonics , physics , quantum mechanics
We report a numerical analysis of an optically tunable channel drop filter that consists of a resonant cavity side-coupled to a waveguide embedded in a two-dimensional nonlinear photonic crystal. We first introduce a numerical method that allows us to calculate the photonic band structure of a nonlinear photonic crystal, as well as the frequency and field profile of cavity and waveguide modes. Then, we use this numerical method to study the dependence of the resonant frequency of a cavity side-coupled to a waveguide, on the optical power in the waveguide.