Transfer of Stable Optical Frequency for Sensory Networks via 306 km Optical Fiber Link

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F16%3A00467104" target="_blank" >RIV/68081731:_____/16:00467104 - isvavai.cz</a>

Alternative codes found

RIV/63839172:_____/16:10130727

Result on the web

<a href="http://dx.doi.org/10.1109/EFTF.2016.7477821" target="_blank" >http://dx.doi.org/10.1109/EFTF.2016.7477821</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EFTF.2016.7477821" target="_blank" >10.1109/EFTF.2016.7477821</a>

Result language

angličtina

Original language name

Transfer of Stable Optical Frequency for Sensory Networks via 306 km Optical Fiber Link

Original language description

Optical fiber links for distribution of highly-stable optical frequencies were experimentally tested by many metrology laboratories in the past fifteen years. But recent development of new optical sensors for industrial application puts demands on a technology transfer of this high-end technology from laboratory experiments to the real industry. The remote calibration of interrogators of Fiber Bragg Grating strain sensory networks is one of important examples. We present a 306 km long optical fiber link established in the Czech Republic where a coherent transfer of stable optical frequency has been firstly demonstrated. The link between ISI CAS Brno and CESNET Prague uses an internet communication fiber where a window 1540 to 1546 nm in DWDM grid is dedicated for the coherent transfer and 1 PPS signal. The optical frequency standard at 1540.5 nm is used for the coherent transfer where compensation of the Doppler shift induced by the optical fiber is done by an acousto-optic modulator driven by a servo loop. The closed loop action is continuously recorded. This enables to compute changes in the transport delay introduced by external influences on the optical line. A comparison with a different measuring method based on analyzing the transport delay of a 1 PPS signal transmitted via the same DWDM window is done. This comparison is a subject of results of the paper.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Article name in the collection

European Frequency and Time Forum (EFTF) 2016

ISBN

978-1-5090-0720-2

ISSN

—

e-ISSN

—

Number of pages

4

Pages from-to

—

Publisher name

IEEE

Place of publication

Piscataway

Event location

York

Event date

Apr 4, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000386307700066