System for continuous evaluation of optical path asymmetry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00368098" target="_blank" >RIV/68407700:21230/23:00368098 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2678936" target="_blank" >http://dx.doi.org/10.1117/12.2678936</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2678936" target="_blank" >10.1117/12.2678936</a>

Jazyk výsledku

angličtina

Název v původním jazyce

System for continuous evaluation of optical path asymmetry

Popis výsledku v původním jazyce

Precise time and stable radio frequency dissemination is becoming standard application in optical networks. The White Rabbit system is commonly used for this purpose to support applications that require precise time and a stable frequency signal. Optical fibers are preferred for distributing the precise time and frequency signal in this system. To achieve best results, i.e. determine absolute offsets, it is necessary to know the asymmetry of the optical transmission path in which the system is deployed. We developed a device based on a MEMS optical switch that measures the delay of the optical path in both the forward and reverse directions. These measurements are used to continuously evaluate changes in the asymmetry of the transmission path, and the resulting asymmetry can be used to calibrate the time transfer system.

Název v anglickém jazyce

System for continuous evaluation of optical path asymmetry

Popis výsledku anglicky

Precise time and stable radio frequency dissemination is becoming standard application in optical networks. The White Rabbit system is commonly used for this purpose to support applications that require precise time and a stable frequency signal. Optical fibers are preferred for distributing the precise time and frequency signal in this system. To achieve best results, i.e. determine absolute offsets, it is necessary to know the asymmetry of the optical transmission path in which the system is deployed. We developed a device based on a MEMS optical switch that measures the delay of the optical path in both the forward and reverse directions. These measurements are used to continuously evaluate changes in the asymmetry of the transmission path, and the resulting asymmetry can be used to calibrate the time transfer system.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20202 - Communication engineering and systems

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proc. SPIE 12686, Infrared Remote Sensing and Instrumentation XXXI

ISBN

978-1-5106-6587-3

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham (stát Washington)

Místo konání akce

San Diego, CA

Datum konání akce

18. 8. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—