Amplified spontaneous emission and threshold crossing in a distributed-Bragg reflector grating-coupled surface-emitting laser

Author

Boucher, Y. ; Dellea, O.

Author_Institution

ENIB/RESO, Brest, France

Volume

148

Issue

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

25

Lastpage

30

Abstract

The threshold crossing inside a second-order distributed-Bragg reflector grating-coupled surface-emitting laser is theoretically investigated. The spontaneous emission field, looked upon as the driving source of the laser radiation, is described in a semi-classical way in the spectral domain. The gain, the source and possibly the refractive index, are saturated through amplified spontaneous emission, integrated over the whole spectral range of the main longitudinal mode. Simple expressions are obtained for both the laser intensity and linewidth as a function of the pump, which remain continuously valid across the threshold

Keywords

diffraction gratings; distributed Bragg reflector lasers; laser modes; laser theory; quantum well lasers; refractive index; superradiance; surface emitting lasers; GaAs-AlGaAs; amplified spontaneous emission; distributed-Bragg reflector grating-coupled surface-emitting laser; gain; laser intensity; laser radiation; linewidth; main longitudinal mode; refractive index; second-order; semi-classical way; source; spectral domain; spontaneous emission field; threshold crossing;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:20010177

Filename

914418