From spontaneous emission to threshold-crossing: the case of distributed feedback lasers

Author

Boucher, Y.

Author_Institution

ENIB/RESO, Brest, France

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. As in any other optical amplifier or laser system, amplified spontaneous emission (ASE) is known to play quite decisive a role in limiting the performance of distributed feedback (DFB) lasers. But spontaneous emission is not only responsible for noise: it is also the very driving source enabling the laser oscillation to take place. The threshold-crossing of a complex-coupled DFB is more thoroughly investigated We derive an analytical formula for the laser power and linewidth, both continuously valid above as well as below threshold.

Keywords

distributed feedback lasers; laser beams; laser feedback; laser theory; semiconductor lasers; semiconductor optical amplifiers; spontaneous emission; superradiance; amplified spontaneous emission; analytical formula; complex-coupled DFB laser; distributed feedback lasers; driving source; laser oscillation; laser power; laser system; linewidth; noise; optical amplifier; performance; spontaneous emission; threshold; threshold-crossing; Distributed amplifiers; Distributed feedback devices; Laser feedback; Laser noise; Optical amplifiers; Optical feedback; Optical noise; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on

Conference_Location

Nice

Print_ISBN

0-7803-6319-1

Type

conf

DOI

10.1109/CLEOE.2000.910085

Filename

910085