A5060914274- Radio Frequency Integrated Circuit Design
- Advancements in PLL and VCO Technologies
- Optical Network Technologies
- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Particle Detector Development and Performance
- Quantum optics and atomic interactions
- Radiation Effects in Electronics
- Electromagnetic Compatibility and Noise Suppression
- Advanced Fiber Laser Technologies
- VLSI and Analog Circuit Testing
European Organization for Nuclear Research
2017-2024
The high luminosity expected in the second phase of upgrades Large Hadron Collider (LHC phase-2 upgrades) will pose unprecedented challenges to its four experiments terms collisions density—also known as pile-up—per beam crossing. Disentangling vertices 200 simultaneous every 25 ns requires granularity detectors, well extremely precise and stable timing. While short-term timing stability is usually a concern addressed distribution systems, long-term variations due changing environmental...
The TTC-PON (Timing, Trigger and Control system based in Passive Optical Networks) was first investigated 2010 order to replace the current TTC system, responsible for delivering bunch clock, trigger control commands LHC experiments. A new prototype of is now proposed, overcoming limitations formerly presented solutions. upstream data transmission scheme relying on longer bursts described, together with a high-resolution calibration procedure aligning time division multiplexing access. An...
This article discusses the challenges posed on field-programmable gate array (FPGA) transceivers in terms of phase-determinism requirements for timing distribution at Large Hadron Collider (LHC) experiments. Having a fixed phase after startups is major requirement, and typical variations observed order tens picoseconds while using state-of-the-art design techniques are no longer sufficient. Each limitation transmitter receiver paths high-speed embedded Xilinx Ultrascale FPGA family further...
The Large Hadron Collider (LHC) experiments will have their timing, trigger, and control (TTC) system upgraded as a consequence of the need for higher bandwidth components which are obsolete. In this article, we present TTC based on passive optical networks (PONs). TTC-PON is point-to-multipoint bidirectional 10 Gbit/s International Telecommunications Union (ITU) XG-PON technology modern field-programmable gate array (FPGA) devices. Each master can handle up to 64 slaves through fully...
We describe a low-cost system designed to monitor wander in digital clocks with precision of $\le$ 1 ps. With this we have shown that it is possible track phase variations at the sub-picosecond level by adding noise reference clock. As many cases where clock part complex distribution network small changes temperature and other effects can lead clock's phase. further demonstration system, used measure induced optical signals fibers.
The Large Hadron Collider (LHC) uses timing, trigger and control (TTC) system backbone to distribute the bunch clock other critical timing signals all participating experiments. signal is directly derived from radio frequency (RF) driving beams in accelerator. whole range of electronic systems an ADC high-speed transmission link works synchronous are sensitive jitter. Throughout distribution chain, high-frequency components increase Multiple Phase-Locked Loops (PLLs) used entire chain...