Large scale infrastructure for precise time and frequency bidirectional transmission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00555787" target="_blank" >RIV/68081731:_____/21:00555787 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11830/2592328/Large-scale-infrastructure-for-precise-time-and-frequency-bidirectional-transmission/10.1117/12.2592328.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11830/2592328/Large-scale-infrastructure-for-precise-time-and-frequency-bidirectional-transmission/10.1117/12.2592328.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2592328" target="_blank" >10.1117/12.2592328</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Large scale infrastructure for precise time and frequency bidirectional transmission

Popis výsledku v původním jazyce

Precise time and ultra-stable optical frequency transfers over fiber networks are deployed relatively often these days. When size of such infrastructure for precise time and frequency bidirectional transmission is becoming significant, aspects associated with infrastructure operational cost and time needed for deployment of time and frequency transmission must be considered. First can be decreased via fiber sharing with telecommunication traffic, however spectral allocation must be considered carefully to avoid mutual disturbance of time and frequency transmission versus data and allow future accommodation of growing demands. In text, we show and discuss alternative spectral bands to be used for time and frequency transmission. Time to deployment can be quite excessive especially when transmission must be established via multiple networks or network domains, also there is a chance of blocking. In case of precise time and optical radio frequency transmission it is possible to use conversion from optical to electrical and back to optical domain with wavelength change. This possibility removes danger of blocking and improves time to deployment for such services. We also address possibility to change wavelength or just extend reach by using simple re-amplify and reshape approach.

Název v anglickém jazyce

Large scale infrastructure for precise time and frequency bidirectional transmission

Popis výsledku anglicky

Precise time and ultra-stable optical frequency transfers over fiber networks are deployed relatively often these days. When size of such infrastructure for precise time and frequency bidirectional transmission is becoming significant, aspects associated with infrastructure operational cost and time needed for deployment of time and frequency transmission must be considered. First can be decreased via fiber sharing with telecommunication traffic, however spectral allocation must be considered carefully to avoid mutual disturbance of time and frequency transmission versus data and allow future accommodation of growing demands. In text, we show and discuss alternative spectral bands to be used for time and frequency transmission. Time to deployment can be quite excessive especially when transmission must be established via multiple networks or network domains, also there is a chance of blocking. In case of precise time and optical radio frequency transmission it is possible to use conversion from optical to electrical and back to optical domain with wavelength change. This possibility removes danger of blocking and improves time to deployment for such services. We also address possibility to change wavelength or just extend reach by using simple re-amplify and reshape approach.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Infrared Remote Sensing and Instrumentation XXIX

ISBN

978-1-5106-4498-4

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

"Roč. 11830 (2021)"

Název nakladatele

SPIE

Místo vydání

Washington

Místo konání akce

San Diego

Datum konání akce

1. 8. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000760197300001