Threshold gain and threshold current analysis of circular grating DFB and DBR lasers

Author

Wu, Chunmeng ; Makino, Toshihiko ; Najafi, S. Iraj ; Maciejko, Romain ; Svilans, Mikelis ; Glinski, Jan ; Fallahi, Mahmoud

Author_Institution

Bell-Northern Res., Ottawa, Ont., Canada

Volume

29

Issue

10

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

2596

Lastpage

2606

Abstract

A TE-cylindrical wave threshold gain and threshold current analysis is presented for circular grating distributed feedback (CG-DFB) and circular grating distributed-Bragg-reflector (CG-DBR) lasers. Mode properties of CG-DFB/DBR lasers are discussed. It is found that the threshold gain, threshold current density and threshold current of CG-DBR lasers can be much lower than those of CG-DFB lasers

Keywords

current density; diffraction gratings; distributed Bragg reflector lasers; distributed feedback lasers; laser modes; laser theory; semiconductor lasers; DBR lasers; DFB lasers; TE-cylindrical wave threshold gain; circular grating; distributed feedback; distributed-Bragg-reflector; laser diode theory; mode properties; threshold current analysis; threshold gain; Bragg gratings; Distributed Bragg reflectors; Distributed feedback devices; Laser feedback; Laser modes; Laser theory; Optical surface waves; Pump lasers; Surface emitting lasers; Threshold current;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.250381

Filename

250381