Verification of a System for Calibrating Optical Transmission Path Asymmetry
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F63839172%3A_____%2F24%3A10133672" target="_blank" >RIV/63839172:_____/24:10133672 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1109/ISPCS63021.2024.10747716" target="_blank" >http://dx.doi.org/10.1109/ISPCS63021.2024.10747716</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ISPCS63021.2024.10747716" target="_blank" >10.1109/ISPCS63021.2024.10747716</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Verification of a System for Calibrating Optical Transmission Path Asymmetry
Popis výsledku v původním jazyce
This work addresses the calibration of asymmetry in optical transmission paths for precise time and frequency distribution. Specifically, we focus on calibrating White Rabbit technology, where local calibration is not possible due to the considerable distance between synchronized nodes. We developed an automatic calibration system using micro-electromechanical optical switches, which we verified under laboratory conditions. The verification process utilizes a basic calibration method, employing an auxiliary communication channel to transmit the 1PPS signal from a remote synchronized White Rabbit node for local comparison. The remote 1PPS signal's transmission direction is time-multiplexed. Experimental results from a laboratory model of a real optical transmission system demonstrated the alignment between the automatic calibration system and our verification chain. The change in optical system asymmetry, simulated by adding additional optical fiber to the existing path, resulted in measured asymmetry changes of 101.5 ps by the automatic system and 102.6 ps by the verification chain. The overall difference between these two calibration methods was 1.1 ps. These findings confirm that the automatic system provides reliable results for calibrating asymmetry in optical transmission systems.
Název v anglickém jazyce
Verification of a System for Calibrating Optical Transmission Path Asymmetry
Popis výsledku anglicky
This work addresses the calibration of asymmetry in optical transmission paths for precise time and frequency distribution. Specifically, we focus on calibrating White Rabbit technology, where local calibration is not possible due to the considerable distance between synchronized nodes. We developed an automatic calibration system using micro-electromechanical optical switches, which we verified under laboratory conditions. The verification process utilizes a basic calibration method, employing an auxiliary communication channel to transmit the 1PPS signal from a remote synchronized White Rabbit node for local comparison. The remote 1PPS signal's transmission direction is time-multiplexed. Experimental results from a laboratory model of a real optical transmission system demonstrated the alignment between the automatic calibration system and our verification chain. The change in optical system asymmetry, simulated by adding additional optical fiber to the existing path, resulted in measured asymmetry changes of 101.5 ps by the automatic system and 102.6 ps by the verification chain. The overall difference between these two calibration methods was 1.1 ps. These findings confirm that the automatic system provides reliable results for calibrating asymmetry in optical transmission systems.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20202 - Communication engineering and systems
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2023054" target="_blank" >LM2023054: e-Infrastruktura CZ</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication, ISPCS
ISBN
979-8-3503-6611-2
ISSN
1949-0313
e-ISSN
—
Počet stran výsledku
6
Strana od-do
—
Název nakladatele
IEEE Service Center
Místo vydání
445 Hoes Lane, Piscataway, NJ 08855-1331 USA
Místo konání akce
Tokyo, Japonsko
Datum konání akce
7. 10. 2024
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—