Datacom lasers and optical interconnects

Start date 01/01/2008
End date The project is closed: 31/12/2016
Short reach optical links and interconnects are increasingly used to transfer large amounts of data along optical fibers and polymer waveguides in e.g. datacenters and high performance computing systems.
The preferred light source is the vertical cavity surface emitting laser (VCSEL) due to its high efficiency, high modulation speed, efficient coupling to optical fibers, and low manufacturing cost.
In this project we develop new VCSELs and VCSEL related technologies to meet demands for higher capacity, longer reach, and lower power consumption of optical interconnect links and networks. This includes higher speed and higher efficiency VCSELs, high speed tunable VCSELs, and VCSEL arrays and integration platforms for space and wavelength division multiplexed interconnects. It also includes the use of more advanced modulation formats, such as multi-level modulation, for higher capacity through improved spectral efficiency of the communication channel.
During recent years we have demonstrated record VCSEL performance in terms of single mode power, polarization control, wavelength tuning, modulation bandwidth, digital transmission capacity, and RF transmission performance.
Project leader and contact person
External partners at the project
​Tyndall Institute, Cork, Ireland
Technical University of Berlin, Berlin, Germany
Cambridge University, Cambridge, UK
CNR-IEIIT, Torino, Italy
IQE Europe, Cardiff, UK
HP Labs, Palo Alto, CA, USA
TE Connectivity, Järfälla, Sweden
IBM, Yorktown Heights, NY, USA

Swedish Foundation for Strategic Research, 2008-2013 (15.9 MSEK)
Swedish Research Council, 2011-2014 (3.3 MSEK)
Swedish Research Council, 2011-2013 (2.5 MSEK)
Swedish Research Council, 2013-2016 (4.0 MSEK)
European Union, project SUBTUNE, 2008-2011 (3.5 MSEK)
European Union, project VISIT, 2008-2011 (3.6 MSEK)
European Union, project MERLIN, 2013-2016 (3.4 MSEK)
TE Connectivity, 2011-2013 (1.9 MSEK)
HP Labs, 2011-2014 (3.1 MESK)
Chalmers Area-of-Advance Nanoscience and Nanotechnology, 2013 (0.5 MSEK)

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