News Article
Chalmers professor nets HP award for VCSEL research
Anders Larsson as been honoured for his research on gallium arsenide based vertical cavity surface emitting lasers
HP Labs Innovation Research has awarded Chalmers professor Anders Larsson for his work on “High Contrast Grating VCSELs for WDM Computer Interconnects.”
The project was a collaboration with Michael Tan and his group at the Intelligent Infrastructure Lab at HP Labs.
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Chalmers researchers involved in the project: Jörgen Bengtsson, Erik Haglund, Anders Larsson, Johan Gustafsson and Åsa Haglund. (Photography credit: Peter Widing)
The HP Labs' Innovation Research Program is designed to create opportunities at colleges, universities and research institutes around the world for collaborative research with HP. Anders Larsson is one of 61 university professors selected for the HP Labs Innovation Research Awards in 2012.
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VCSELs are the primary light source for short-reach optical communication because they are highly efficient, have excellent high speed properties, can be easily coupled to optical fibres and are cheap to manufacture.
Today, VCSELs are mass produced for high capacity optical interconnect cables in storage area networks (data centres) and high performance computing systems such as computer clusters and supercomputers. In the near future, high speed optical cables with VCSEL-based optical transmitters will also make their debut in consumer electronics (Thunderbolt, USB, HDMI and so on.).
For computing applications, the small footprint and high modulation speed of VCSELs enable very high density and very high capacity interconnects. To increase capacity beyond what can be provided by a single channel, space division multiplexing (parallel fibre ribbons or multi-core fibres) or wavelength division multiplexing (WDM) can be used.
WDM, which requires monolithic multi-wavelength VCSEL arrays, enables optical interconnect architectures which offer more complex interconnect topologies and routing schemes. It also enables the interconnect network to adapt to irregular and time varying traffic patterns.
The project aims to develop a VCSEL technology where the wavelength of individual VCSELs can be set in a post-growth fabrication process. This will enable the realisation of low power consumption, high speed, multi-wavelength VCSEL arrays for future WDM interconnects in computing systems.
The project was a collaboration with Michael Tan and his group at the Intelligent Infrastructure Lab at HP Labs.
Chalmers researchers involved in the project: Jörgen Bengtsson, Erik Haglund, Anders Larsson, Johan Gustafsson and Åsa Haglund. (Photography credit: Peter Widing)
The HP Labs' Innovation Research Program is designed to create opportunities at colleges, universities and research institutes around the world for collaborative research with HP. Anders Larsson is one of 61 university professors selected for the HP Labs Innovation Research Awards in 2012.
VCSELs are the primary light source for short-reach optical communication because they are highly efficient, have excellent high speed properties, can be easily coupled to optical fibres and are cheap to manufacture.
Today, VCSELs are mass produced for high capacity optical interconnect cables in storage area networks (data centres) and high performance computing systems such as computer clusters and supercomputers. In the near future, high speed optical cables with VCSEL-based optical transmitters will also make their debut in consumer electronics (Thunderbolt, USB, HDMI and so on.).
For computing applications, the small footprint and high modulation speed of VCSELs enable very high density and very high capacity interconnects. To increase capacity beyond what can be provided by a single channel, space division multiplexing (parallel fibre ribbons or multi-core fibres) or wavelength division multiplexing (WDM) can be used.
WDM, which requires monolithic multi-wavelength VCSEL arrays, enables optical interconnect architectures which offer more complex interconnect topologies and routing schemes. It also enables the interconnect network to adapt to irregular and time varying traffic patterns.
The project aims to develop a VCSEL technology where the wavelength of individual VCSELs can be set in a post-growth fabrication process. This will enable the realisation of low power consumption, high speed, multi-wavelength VCSEL arrays for future WDM interconnects in computing systems.
