Title :
Compensation of slow light velocity dispersion in tapered period one-dimensional photonic crystal coupled cavities
Author :
Chen, Qin ; Allsopp, Duncan W E
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Bath, Bath, UK
Abstract :
Optical waveguides formed from coupled ultrahigh-Q cavities are investigated by finite-difference time-domain (FDTD) simulation. Ultra-high group velocity dispersion together with a group velocity as low as 3times10-5 c is predicted at the band edge. It is shown that full compensation of the group velocity dispersion for chip free slow light (~c/100) over a bandwidth of 230 GHz is possible using a coupled-cavity waveguide comprising cavities of Q ~ 106.
Keywords :
finite difference time-domain analysis; laser cavity resonators; optical dispersion; optical waveguides; photonic crystals; chip free slow light; coupled ultrahigh-Q cavities; coupled-cavity waveguide; finite-difference time-domain simulation; frequency 230 GHz; optical waveguides; slow light velocity dispersion; tapered period 1D photonic crystal coupled cavities; ultra-high group velocity dispersion; Bandwidth; Finite difference methods; Microcavities; Mirrors; Optical buffering; Optical coupling; Optical waveguides; Photonic crystals; Slow light; Time domain analysis; (230.2035) Dispersion compensation devices; (230.5298) Photonic crystals;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
