8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

New Optical Link Technologies for HEP Experiments

Aug 12, 2011, 4:00 PM
556 (Rhode Island Convention Center)


Rhode Island Convention Center

Parallel contribution Detector Technology and R&D Detector Technology and R&D


Waruna Fernando (Argonne National Lab)


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)


Dr Daniel Lopez (Center for Nanoscale Materials, Argonne National Lab) Dr Robert Stanek (HEP - Argonne National Lab)

Presentation materials