Ultra-high Q photonic crystal waveguides for DFB laser operation

Author

Gauthier-Lafaye, O. ; Larrue, A. ; Monmayrant, A. ; Bonnefont, S. ; Lozes-Dupuy, F.

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

In this paper, we show with 3D FDTD simulations that the affine deformation can be efficiently combined with a waveguide deformation to achieve extremely high quality factors (Q ~ 106) for one DFB mode. A 100 time´s fold increase of the Q factor is achieved between the standard W3 waveguide and the optimised deformed PhC waveguide. We also show that the Q factor is increased solely for one of the 2 DFB modes, thus increasing the modal selectivity of the laser cavity.

Keywords

Q-factor; distributed feedback lasers; finite difference time-domain analysis; laser cavity resonators; optical waveguides; photonic crystals; semiconductor lasers; 3D FDTD simulation; DFB laser operation; affine deformation; high-quality factor; laser cavity; ultra-high Q photonic crystal waveguides; Distributed feedback devices; Frequency; Laser feedback; Laser modes; Optical arrays; Optical design; Optical waveguides; Photonic crystals; Q factor; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5194801

Filename

5194801