Low Sensitivity to Optical Feedback and Optical Injection of Discrete Mode Lasers

Author

Guignard, C. ; Tipaka, G. ; Vaudel, O. ; Kelly, B. ; Patchell, J. ; Barry, L. ; Besnard, P. ; Gorman, J.O.

Author_Institution

Sch. of Electron. Eng., Dublin City Univ.

fYear

2006

fDate

Oct. 2006

Firstpage

663

Lastpage

664

Abstract

In this paper, we demonstrate the low sensitivity to both external optical feedback and external optical injection of a new type of extremely low cost single-mode lasers, called "discrete mode" (DM) lasers. The DM lasers are obtained from ridge waveguide Fabry Perot (FP) lasers, in which the effective refractive index of the lasing mode has been perturbed. These lasers exhibit a low sensitivity to external optical feedback since the coherence collapse threshold is around 5 dB higher in comparison to a commercial DFB laser

Keywords

Fabry-Perot resonators; laser cavity resonators; laser feedback; laser modes; refractive index; ridge waveguides; semiconductor lasers; waveguide lasers; coherence collapse threshold; discrete mode lasers; effective refractive index; external optical feedback; external optical injection; laser sensitivity; lasing mode; ridge waveguide Fabry Perot lasers; single-mode lasers; Delta modulation; Laser feedback; Laser modes; Optical feedback; Optical refraction; Optical sensors; Optical variables control; Optical waveguides; Ultraviolet sources; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-9555-7

Electronic_ISBN

0-7803-9555-7

Type

conf

DOI

10.1109/LEOS.2006.278887

Filename

4054358