Alternative spectral window for precise time fiber based transport

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00349870" target="_blank" >RIV/68407700:21230/20:00349870 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.33012/2020.17313" target="_blank" >https://doi.org/10.33012/2020.17313</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.33012/2020.17313" target="_blank" >10.33012/2020.17313</a>

Result language

angličtina

Original language name

Alternative spectral window for precise time fiber based transport

Original language description

Precise time and also stable frequency transfers are approaching the state to become almost standard applications for optical fiber networks, especially they are becoming supported in multiple research and education networks. In principle, the time and frequency transfers are not possible to be implemented over data transport layer, which hasn't been was designed for essential stability, and thus dedicated wave band is required for such implementation. To achieve even better stability for precise time and stable frequency, the bidirectional transmission in single physical medium (fibers and ideally all components along the route) is preferred. The White Rabbit system combines synchronous Ethernet and Precise Time Protocol (IEEE-1588) and it has been designed in the CERN with the aim to provide time synchronization among large number of sensors, actuators and other devices utilized in experiments. Primary aim was the operation over single fiber (to avoid nonreciprocal changes in directions) using standard telecommunication transceivers designed for single fiber operation with reach limited to about 40 km. In this paper, we experimentally verify and compare stability of White Rabbit system operation over long distances up to 300 km using active optical amplification on wavelengths which should not be utilized within spectrum needed for regular data transmissions.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2020

Confidentiality

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

Article name in the collection

Proceedings of the 51st Annual Precise Time and Time Interval Systems and Applications Meeting

ISBN

—

ISSN

2333-2085

e-ISSN

2333-2085

Number of pages

4

Pages from-to

187-190

Publisher name

The Institute of Navigation (ION)

Place of publication

Manassas, VA

Event location

San Diego, California

Event date

Jan 21, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000544823000006