VCSELs and Optical Interconnects
![[] Bonded laser chip](/fileadmin/_processed_/1/4/csm_VCSEL_1_4856563803.jpg "[Translate to english:] Bonded laser chip")
![[] Temperature-stabilized mount](/fileadmin/_processed_/1/e/csm_VCSEL_2_e6ecda31f5.jpg "[Translate to english:] Temperature-stabilized mount")
![[] Spectral characterization](/fileadmin/_processed_/1/b/csm_VCSEL_3_df1d78546e.jpg "[Translate to english:] Spectral characterization")
apl. Prof. Dr.-Ing. Rainer Michalzik
- Vertical-cavity surface-emitting lasers (VCSELs)
- Optical interconnect devices and systems
- VCSEL-based optical sensing
![[] GaN nanotubes](/fileadmin/_processed_/c/8/csm_GaN_1_7b386412cd.png "[Translate to english:] GaN nanotubes")
![[] Setup for optical sensing](/fileadmin/_processed_/a/f/csm_GaN_2_7935d3b44a.jpg "[Translate to english:] Setup for optical sensing")
![[] Free-standing GaN wafer](/fileadmin/_processed_/9/6/csm_GaN_3_cf691671e8.jpg "[Translate to english:] Free-standing GaN wafer")
- Epitaxy of AlGaInN heterostructures
- Short wavelength light emitters and lasers
- GaN high electron mobility transistors
High-Power Semiconductor Lasers
![[] VECSEL](/fileadmin/_processed_/b/9/csm_HP_1_35cb6b2afa.png "[Translate to english:] VECSEL")
![[] Semiconductor disk laser with intra-cavity frequnecy doubling](/fileadmin/_processed_/f/7/csm_HP_2_bb2d1a5b4a.png "[Translate to english:] Semiconductor disk laser with intra-cavity frequnecy doubling")
![[] External mirror and nonlinear crystal](/fileadmin/_processed_/c/e/csm_HP_3_a079b3b0cb.png "[Translate to english:] External mirror and nonlinear crystal")
- Optically-pumped semiconductor disk lasers
- High-power diode lasers and amplifiers
- Monolithic integration using etched mirrors