Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Differential gain, refractive index, and linewidth enhancement factor in high-speed GaAs-based MQW lasers - influence of strain and p-doping

Differentieller Gewinn, Berechnungsindex und Linienverbreiterungsfaktor in GaAs-basierenden MQW-Hochgeschwindigkeitslasern - Einfluss der Verspannung und p-Dotierung
 

:

IEEE Photonics Technology Letters 6 (1994), No.8, pp.891-893
ISSN: 1041-1135
English
Journal Article
Fraunhofer IAF ()
differential gain; differentieller Gewinn; linewidth enhancement factor; Linienverbreiterungsfaktor; p-doping; p-Dotierung

Abstract
The addition of strain and p-doping in high-speed GaAs-based MQW lasers are assessed experimentally in terms of their potential for both increasing the differential gain, theta g/theta N, and reducing the modulus of the differential refractive index, |theta n/theta N|, in order to decrease the linewidth enhancement factor, alpha. The increased differential gain with strain alone is found to be offset by a corresponding increase of |theta n/theta N|. The further addition of p-doping, on the other hand, simultaneously increases theta g/theta N and decreases theta n/theta N, yielding a substantial reduction in alpha.

: http://publica.fraunhofer.de/documents/PX-9849.html