VCSELs and Optical Interconnects

Headed by Prof. Karl Joachim Ebeling (who is currently serving as the President of Ulm University) from 1989 until March 2001, the group has a particularly strong research background in the field of vertical-cavity surface-emitting lasers (VCSELs).

At present, our activities are focused on novel VCSEL sources in the 700 to 1000 nm spectral region, optical interconnect systems, optical sensing, as well as biophotonics applications. More in particular, we are working on

• integrated VCSEL−photodiode chips for bidirectional optical data transmission over multimode fiber,
• polarization-stable VCSELs using shallow surface gratings,
• higher-order-mode-emitting VCSELs,
• novel fabrication methods and types of two-dimensional VCSEL arrays,
• integrated VECSEL (vertical extended cavity surface-emitting laser) sources with high beam quality,
• as well as optofluidic integrated VCSEL-based optical traps and particle manipulation and sensing systems.

We love to identify new applications areas of VCSELs, e.g. in optical sensing and metrology, biophotonics, ...
If you like to discuss your ideas, please don't hesitate to contact us. 

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A great deal of our work is being performed in the excellently equipped cleanroom of Ulm University.

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We enjoy a fruitful collaboration with Philips Technologie GmbH U-L-M Photonics, which emerged from the VCSEL group and which is one of the leaders in VCSEL fabrication.

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We are an active member of the Photonics BW Association.

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