Influence of the carrier density dependence of the absorption on the harmonic distortion in semiconductor lasers

Author

Morthier, Geert

Author_Institution

Lab. of Electromagn. & Acoustics, IMEC, Gent Univ.

Volume

11

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

16

Lastpage

19

Abstract

It is shown that the carrier density dependence of the absorption can result in a significant increase of the harmonic distortion caused by gain suppression or by spatial hole burning in distributed-feedback (DFB)-lasers. This carrier density dependence of the absorption is often neglected in theoretical studies, but the author found that it may result in a dominant contribution to the second-order distortion in the AM response, especially at high output powers. The distortion then mainly depends on material parameters such as differential gain, differential absorption and the gain suppression method

Keywords

amplitude modulation; carrier density; distributed feedback lasers; optical communication equipment; optical hole burning; optical modulation; semiconductor lasers; AM response; DFB lasers; analog optical links; carrier density dependence; differential absorption; differential gain; distributed feedback lasers; gain suppression; harmonic distortion; high output powers; light absorption; optical communications equipment; second-order distortion; semiconductor lasers; spatial hole burning; Absorption; Acoustic distortion; Charge carrier density; Distortion measurement; Frequency; Harmonic distortion; Laser noise; Laser theory; Optical distortion; Power generation;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.210565

Filename

210565