Integration of vibration sensing in time transfer infrastructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00645670" target="_blank" >RIV/68081731:_____/25:00645670 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/25:00386770 RIV/68407700:21340/25:00386770 RIV/63839172:_____/25:10133736

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/13612/136120A/Integration-of-vibration-sensing-in-time-transfer-infrastructure/10.1117/12.3063373.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/13612/136120A/Integration-of-vibration-sensing-in-time-transfer-infrastructure/10.1117/12.3063373.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3063373" target="_blank" >10.1117/12.3063373</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Integration of vibration sensing in time transfer infrastructure

Popis výsledku v původním jazyce

The dissemination of precise time and coherent optical frequency over dedicated fibers or „dark“channels within Dense Wavelength Division Multiplexing (DWDM) networks is crucial for advanced scientific research, geophysical monitoring, and emerging industrial applications. By leveraging actively stabilized phase-coherent optical frequency transfer technique, we maintain ultra-low timing jitter and frequency stability over long-haul fiber links without disrupting of data channels. This contribution explores utilization of a shared dark spectrum within existing DWDM infrastructure to enable high-precision time transfer and stable optical frequency dissemination while simultaneously facilitating distributed vibration sensing. Furthermore, the integration of distributed fiber sensing within the same spectral allocation enables real-time detection of environmental disturbances such as seismic events and structural vibrations. Experimental results demonstrate the feasibility of this dual-purpose approach, showcasing its potential for enhancing geophysical monitoring, smart infrastructure, and next-generation metrology applications while optimizing the use of existing telecom networks.

Název v anglickém jazyce

Integration of vibration sensing in time transfer infrastructure

Popis výsledku anglicky

The dissemination of precise time and coherent optical frequency over dedicated fibers or „dark“channels within Dense Wavelength Division Multiplexing (DWDM) networks is crucial for advanced scientific research, geophysical monitoring, and emerging industrial applications. By leveraging actively stabilized phase-coherent optical frequency transfer technique, we maintain ultra-low timing jitter and frequency stability over long-haul fiber links without disrupting of data channels. This contribution explores utilization of a shared dark spectrum within existing DWDM infrastructure to enable high-precision time transfer and stable optical frequency dissemination while simultaneously facilitating distributed vibration sensing. Furthermore, the integration of distributed fiber sensing within the same spectral allocation enables real-time detection of environmental disturbances such as seismic events and structural vibrations. Experimental results demonstrate the feasibility of this dual-purpose approach, showcasing its potential for enhancing geophysical monitoring, smart infrastructure, and next-generation metrology applications while optimizing the use of existing telecom networks.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/EH22_008%2F0004649" target="_blank" >EH22_008/0004649: Kvantové inženýrství a nanotechnologie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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 XXXIII

ISBN

978-1-5106-9132-2

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

4

Strana od-do

136120A

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

San Diego

Datum konání akce

5. 8. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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