Speaker
Waruna Fernando
(Argonne National Lab)
Description
New Optical Link Technologies for HEP Experiments
B. Fernando, D. Underwood, R. Stanek, P.M. DeLurgio,
High Energy Physics, Argonne National Laboratory
D. Lopez, Center for Nanoscale Materials, Argonne National Laboratory
As a concern with the reliability and mass of current optical links in
LHC experiments, we are investigating CW lasers and light modulators
as an alternative to VCSELs. In addition we are developing data links
in air, utilizing steering by MEMS mirrors and optical feedback paths
for the control loop. Laser, modulator, and lens systems used are
described, as well as two different electronic systems for a free
space steering feedback loop.
Our prototype system currently operates at 1.25 Gb/s, but could be
upgraded. This link works over distances of order meters. Such links
might enable one to move communication lasers (e.g. VCSELs) and
optical fibers out of tracking detectors, for reasons such as
reliability and power consumption. Some applications for free space
data links, such as local triggering and data readout and
trigger-clock distribution and links for much longer distances are
also discussed.
Primary authors
Dr
David Underwood
(Argonne National Laboratory (ANL))
Waruna Fernando
(Argonne National Lab)
Co-authors
Dr
Daniel Lopez
(Center for Nanoscale Materials, Argonne National Lab)
Dr
Robert Stanek
(HEP - Argonne National Lab)
