Measurements of chirp and linewidth enhancement factor of DFB semiconductor lasers using a self-homodyne interferometric system

Author

Saavedra, A.A. ; Passy, R. ; von der Weid, J.P. ; Manganote, E. ; Bordeaux, A.C.G.

Author_Institution

Center of Telecommun. Studies, Pontificia Univ. Catolica do Rio de Janeiro, Brazil

Volume

1

fYear

1997

fDate

11-14 Aug 1997

Firstpage

401

Abstract

A self-homodyne interferometric optical system fed by a modulated DFB semiconductor laser is used to obtain the AM and FM response, the chirp parameter and the linewidth enhancement factor of these lasers. Three different DFB lasers were measured and the results are in good agreement with those obtained by others techniques. The knowledge of these lasers characteristics are important in high-performance optical communications systems, to improve the FM response, the transmission data rates, predict channel densities and reduce crosstalk

Keywords

amplitude modulation; distributed feedback lasers; frequency modulation; laser variables measurement; light interferometry; optical modulation; semiconductor lasers; spectral line breadth; AM response; DFB semiconductor lasers; FM response; chirp parameter; linewidth enhancement factor; modulated DFB laser; self-homodyne interferometric system; Chirp; Fiber lasers; Frequency modulation; Frequency shift keying; Intensity modulation; Optical fiber communication; Optical interferometry; Optical mixing; Optical modulation; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International

Conference_Location

Natal

Print_ISBN

0-7803-4165-1

Type

conf

DOI

10.1109/SBMOMO.1997.646904

Filename

646904