Simplified Model of the Dynamic Thermal Tuning Behavior of VCSELs

Author

Chen, Jia ; Hangauer, Andreas ; Amann, Markus-Christian

Author_Institution

Power & Sensor Syst., Siemens Corp. Technol., Munich

Volume

20

Issue

13

fYear

2008

fDate

7/1/2008 12:00:00 AM

Firstpage

1082

Lastpage

1084

Abstract

In this letter, a simplified thermal model is used to derive a closed-form expression for the frequency dependency of the current-to-wavelength tuning coefficient (FM response) of vertical-cavity surface-emitting lasers (VCSELs). It explains the experimentally observed square root law and shows very good agreement with measured FM responses of two different VCSEL types. It yields significantly improved accuracy compared to the usually assumed first-order low-pass model.

Keywords

frequency modulation; laser tuning; semiconductor lasers; surface emitting lasers; FM response; VCSEL; closed-form expression; current-to-wavelength tuning coefficient; dynamic thermal tuning behavior; thermal model; vertical-cavity surface-emitting lasers; Cutoff frequency; Distributed feedback devices; Frequency modulation; Laser modes; Laser theory; Laser tuning; Optical refraction; Optical variables control; Surface emitting lasers; Vertical cavity surface emitting lasers; Dynamic wavelength tuning; laser theory; tunable vertical-cavity surface-emitting lasers (VCSELs);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.924296

Filename

4531622