Sensitivity comparison of acoustic vibration detection methods in underground optical networks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00642155" target="_blank" >RIV/68081731:_____/25:00642155 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/13698/3072894/Sensitivity-comparison-of-acoustic-vibration-detection-methods-in-underground-optical/10.1117/12.3072894.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/13698/3072894/Sensitivity-comparison-of-acoustic-vibration-detection-methods-in-underground-optical/10.1117/12.3072894.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3072894" target="_blank" >10.1117/12.3072894</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sensitivity comparison of acoustic vibration detection methods in underground optical networks

Popis výsledku v původním jazyce

Optical fibers, commonly used in communication networks, can also serve as highly sensitive vibration sensors. This property raises security concerns, as vibrations induced by environmental factors or human activity can be detected and analyzed, potentially enabling unauthorized monitoring. Various sensing techniques leverage different physical principles to interpret these disturbances. In this study, we evaluate and compare the performance of three distinct methods: phase-sensitive OTDR, state of polarization detection, and Michelson interferometry. Presented measurements were conducted on optical fibers deployed along a roadside within a university campus, where we examined how external conditions influence signal behavior. The results provide insights into the feasibility and limitations of these sensing methods in practical scenarios. Our findings contribute to the ongoing development of fiber-based vibration monitoring systems, with potential applications in infrastructure security and environmental sensing.

Název v anglickém jazyce

Sensitivity comparison of acoustic vibration detection methods in underground optical networks

Popis výsledku anglicky

Optical fibers, commonly used in communication networks, can also serve as highly sensitive vibration sensors. This property raises security concerns, as vibrations induced by environmental factors or human activity can be detected and analyzed, potentially enabling unauthorized monitoring. Various sensing techniques leverage different physical principles to interpret these disturbances. In this study, we evaluate and compare the performance of three distinct methods: phase-sensitive OTDR, state of polarization detection, and Michelson interferometry. Presented measurements were conducted on optical fibers deployed along a roadside within a university campus, where we examined how external conditions influence signal behavior. The results provide insights into the feasibility and limitations of these sensing methods in practical scenarios. Our findings contribute to the ongoing development of fiber-based vibration monitoring systems, with potential applications in infrastructure security and environmental sensing.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Photonics, Devices, and Systems IX

ISBN

9781510693456

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

7

Strana od-do

136980J

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Prague

Datum konání akce

9. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001723559900019