VCSELs and Optical Interconnects

[] Bonded laser chip

[] Temperature-stabilized mount

[] Spectral characterization

apl. Prof. Dr.-Ing. Rainer Michalzik

Vertical-cavity surface-emitting lasers (VCSELs)
Optical interconnect devices and systems
VCSEL-based optical sensing

GaN-based Electronics and Optoelectronics

[] GaN nanotubes

[] Setup for optical sensing

[] Free-standing GaN wafer

Prof. Dr. Ferdinand Scholz

Epitaxy of AlGaInN heterostructures
Short wavelength light emitters and lasers
GaN high electron mobility transistors

High-Power Semiconductor Lasers

[] VECSEL

[] Semiconductor disk laser with intra-cavity frequnecy doubling

[] External mirror and nonlinear crystal

Prof. Dr. Peter Unger

Optically-pumped semiconductor disk lasers
High-power diode lasers and amplifiers
Monolithic integration using etched mirrors