Effect of optical feedback on fast modulated semiconductor lasers

Author

Homar, M.V. ; Mirasso, C.R.

Author_Institution

Dept. de Fisica, Univ. de les Ilears, Palma de Mallorca, Spain

Volume

144

Issue

1

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

30

Lastpage

33

Abstract

The authors have studied the numerical response of a singlemode semiconductor laser under modulation of the injection current in the presence of optical feedback for different external cavity lengths. They have restricted the experiment to the nonreturn-to-zero modulation scheme and a modulation frequency of 10 Gbit/s. Observations are made that for short cavities (a few millimetres) the eye diagram aperture and the frequency chirp depend strongly on the phase of the reinjected field. Conversely, for cavity lengths of a few centimetres (pig-tail sizes) neither the eye aperture nor the frequency chirp are appreciably affected by the feedback

Keywords

chirp modulation; electro-optical modulation; laser cavity resonators; laser feedback; laser modes; laser theory; semiconductor device models; semiconductor lasers; external cavity lengths; eye diagram aperture; fast modulated semiconductor lasers; frequency chirp; injection current; modulation frequency; nonreturn-to-zero modulation scheme; numerical response; optical feedback; short cavities; singlemode semiconductor laser;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19971070

Filename

580329