Title :
Temperature-Dependent Small-Signal Analysis of High-Speed High-Temperature Stable 980-nm VCSELs
Author :
Mutig, Alex ; Fiol, Gerrit ; Pötschke, Konstantin ; Moser, Phillip ; Arsenijevic, Dejan ; Shchukin, Vitaly A. ; Ledentsov, Nikolay N. ; Mikhrin, Sergey S. ; Krestnikov, Igor L. ; Livshits, Daniil A. ; Kovsh, Alexey R. ; Hopfer, Friedhelm ; Bimberg, Dieter
Author_Institution :
Inst. fuer Festkoerperphys., Tech. Univ. Berlin, Berlin
Abstract :
980-nm VCSELs based on submonolayer growth show for 20-Gbit/s large-signal modulation clearly open eyes without adjustment of the driving conditions between 25degC and 120degC. To access the limiting mechanism for the modulation bandwidth, a temperature-dependent small-signal analysis is carried out on these devices. Single-mode devices are limited by damping, whereas multimode devices are limited by thermal effects, preventing higher photon densities in the cavity.
Keywords :
high-speed optical techniques; laser beams; laser cavity resonators; laser modes; laser stability; optical modulation; semiconductor growth; surface emitting lasers; thermo-optical effects; bit rate 20 Gbit/s; high-speed high-temperature stable VCSELs; large-signal modulation; single-mode devices; submonolayer growth; temperature 25 degC to 120 degC; temperature-dependent small-signal analysis; vertical cavity surface emitting laser; wavelength 980 nm; High-speed modulation; optical interconnects; semiconductor lasers; surface-emitting lasers;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2009.2013359
