Experimental and theoretical characterization of the mode profile of single-mode DFB fiber lasers

Author

Foster, Scott ; Tikhomirov, Alexei

Author_Institution

Maritime Oper. Div., Edinburgh, Australia

Volume

41

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

762

Lastpage

766

Abstract

The characterization of the spatial mode profile of distributed feedback fiber lasers (DFB-FLs) is discussed. A new approximate solution for the mode profile of single longitudinal mode DFB-FLs with nonuniform phase and grating profiles is derived. An enhanced high resolution heat perturbation method for mode shape characterization is described. Experimental mode shape profiles are compared with theoretical predictions with good agreement.

Keywords

Bragg gratings; distributed feedback lasers; fibre lasers; laser modes; laser theory; optical fibres; distributed feedback fiber lasers; grating profile; heat perturbation method; mode shape characterization; phase profile; single-mode DFB fiber lasers; spatial mode profile; Bragg gratings; Distributed feedback devices; Erbium-doped fiber lasers; Fiber lasers; Laser feedback; Laser modes; Laser theory; Optical feedback; Shape; Spatial resolution; Distributed feedback (DFB) lasers; erbium; laser modes; optical fiber Bragg gratings; optical fiber lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2005.846684

Filename

1432963