Abstract
We describe a low-cost system designed to monitor wander in digital clocks with a precision of ≤ 1 ps. With this system we have shown that it is possible to track phase variations at the sub-picosecond level by adding noise to a reference clock. As in many cases where a clock is part of a complex distribution network small changes in temperature and other effects can lead to small changes in the clock's phase. As a further demonstration of the system, we have used it to measure the phase changes induced in optical signals in fibers.
Original language | English (US) |
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Article number | T01003 |
Journal | Journal of Instrumentation |
Volume | 18 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2023 |
Bibliographical note
Publisher Copyright:© 2023 CERN.
Keywords
- Digital electronic circuits
- Timing detectors