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

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

5225812