Quantum dot insertions in VCSELs from 840 to 1300 nm: growth, characterization, and device performance

Presently VCSELs covering a significant spectral range (840-1300 nm) can be produced based on quantum dot (QD) active elements. Herein we report progress on selected QD based vertical-cavity surface-emitting lasers (VCSELs) suitable for high-speed operation. An open eye diagram at 20 Gb/s with error-free transmission (a bit-error-rate 40 Gb/s) current-modulated VCSELs for a new generation of local and storage area networks. Finally we discuss aspects of QD vertical extended-cavity surface emitting lasers with ultrahigh power density per emitting surface for high power (material processing) and frequency conversion (display) applications.