Potential Upgrade of the CMS Tracker Analog Readout Optical Links Using Bandwidth Efficient Digital Modulation
Stefanos Dris, Costas Foudas, Karl Gill, Robert Grabit, Daniel Ricci,, Jan Troska, Francois Vasey
TL;DR
This paper explores the use of digital modulation techniques to significantly increase data rates over existing CMS Tracker optical links, demonstrating experimental feasibility of multi-Gbit/s transmission.
Contribution
It introduces a novel approach applying bandwidth-efficient digital modulation to upgrade optical links in particle physics detectors.
Findings
Multi-Gbit/s data rates achieved experimentally
Use of digital modulation similar to ADSL techniques
Potential for significant upgrade of CMS Tracker readout links
Abstract
The potential application of advanced digital communication schemes in a future upgrade of the CMS Tracker readout optical links is currently being investigated at CERN. We show experimentally that multi-Gbit/s data rates are possible over the current 40 MSamples/s analog optical links by employing techniques similar to those used in ADSL. The concept involves using one or more digitally-modulated sinusoidal carriers in order to make efficient use of the available bandwidth.
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Taxonomy
TopicsParticle Detector Development and Performance · Atomic and Subatomic Physics Research · Advancements in PLL and VCO Technologies