Bragg section effects on linewidth and lineshape in 1.55-μm DBR tunable laser diodes

Author

Signoret, P. ; Myara, M. ; Tourrenc, J.-P. ; Orsal, B. ; Monier, M.-H. ; Jacquet, J. ; Leboudec, P. ; Marin, F.

Author_Institution

Univ. Montpellier II, France

Volume

16

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1429

Lastpage

1431

Abstract

We report linewidth and lineshape measurements on 1.55-μm distributed Bragg reflector tunable laser diodes using the heterodyne method. We measure Lorentzian linewidths ranging from 3.5 to 25 MHz without any passive section injection. Biasing the Bragg section enhances the residual linewidth up to 6.2 MHz, changes the linewidth-power product, and brings an additional Gaussian lineshape. The feedback sensitivity of the overall setup is also demonstrated.

Keywords

distributed Bragg reflector lasers; heterodyne detection; laser feedback; laser tuning; laser variables measurement; optical transmitters; semiconductor lasers; spectral line breadth; 1.55 mum; Bragg section effects; DBR laser; Gaussian lineshape; Lorentzian linewidths; distributed Bragg reflector laser; feedback sensitivity; heterodyne method; tunable laser diodes; Diode lasers; Distributed Bragg reflectors; Distributed feedback devices; Laser feedback; Optical feedback; Optical filters; Optical mixing; Optical sensors; Optical transmitters; Tunable circuits and devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.826707

Filename

1300621