Development of a Laser Driver test setup for SLHC experiments
Future
experiments at the European
Organization for Nuclear
Research (CERN) will increase
the demand for high-bandwidth
optical links due to the growing
amounts of data to be treated by
the data-transmission and
acquisition systems. The
development of the Giga Bit
Laser Driver (GBLD) chip-set
addresses this issue providing a
means to increase the bandwidth
available to transmit data to
and from the counting room. This
paper describes some aspect of
test setup implementation and
the protocol test used to
evaluate and qualify the GBLD.
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An upgrade of
the current LHC (SLHC), is
expected to increase the
luminosity to 1035/cm2/s,
which implies more data to be
transmitted and higher radiation
doses to be sustained. Future
optical links will also be
required to reduce power
dissipation and mass inside the
detector. One possible solution
could be to increase the
bandwidth of each link. Optical
links for SLHC are being
developed into the Giga Bit
Transceiver (GBT) project in
collaboration between CERN and
other international institutes,
including the INFN Perugia and
Torino groups.
The GBT
project aims at designing, in a
commercial CMOS 130 nm
technology, a fast and radiation
tolerant optical transceiver
providing a bidirectional
connection between the frontend
electronics and the DAQ, trigger
and DCS systems. A chip named
Giga Bit Laser Driver (GBLD) for
data transmission at high
data-rates has been developed in
this framework as part of the
GBT project.
Cite as
S. Meroli et al., “Development of a Laser Driver test setup for SLHC experiments”
Nuclear Physics B Proceedings Supplements, Volume 215, Issue 1, p. 218-221, DOI: 10.1016/j.nuclphysbps.2011.04.013
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