Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F24%3APU152040" target="_blank" >RIV/00216305:26220/24:PU152040 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12999/129992R/Standard-single-mode-fiber-and-hollow-core-fiber-sensitivity-to/10.1117/12.3022465.full#_=_" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12999/129992R/Standard-single-mode-fiber-and-hollow-core-fiber-sensitivity-to/10.1117/12.3022465.full#_=_</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3022465" target="_blank" >10.1117/12.3022465</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum

Popis výsledku v původním jazyce

Hollow-core fibers (HCF) are increasingly being studied and evaluated for telecommunication, as well as sensing application. They seem to have many advantages compare to standard single-mode fibers (SMF), especially in the area of the cyber-security of optical fiber infrastructures and also information they carrying. In our research we mainly focus on cyber-security issues, especially acoustic sensing. In the paper we evaluate sensitivity of negative curve HCF using a Mach–Zehnder interferometry (MZI). Results are compared with SMF (G.657 in this case). Both fibers were in primary coating with similar length. Sensitivity measurements were conducted within the controlled environment of an anechoic chamber. Results show that both fibers are sensitive to acoustic vibration and with post-processing method based on de-noising of the measured signal, the sensitivity can be improved. The clarity of the captured speech signal was assessed using the Speech Transmission Index for Public Address (STIPA).

Název v anglickém jazyce

Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum

Popis výsledku anglicky

Hollow-core fibers (HCF) are increasingly being studied and evaluated for telecommunication, as well as sensing application. They seem to have many advantages compare to standard single-mode fibers (SMF), especially in the area of the cyber-security of optical fiber infrastructures and also information they carrying. In our research we mainly focus on cyber-security issues, especially acoustic sensing. In the paper we evaluate sensitivity of negative curve HCF using a Mach–Zehnder interferometry (MZI). Results are compared with SMF (G.657 in this case). Both fibers were in primary coating with similar length. Sensitivity measurements were conducted within the controlled environment of an anechoic chamber. Results show that both fibers are sensitive to acoustic vibration and with post-processing method based on de-noising of the measured signal, the sensitivity can be improved. The clarity of the captured speech signal was assessed using the Speech Transmission Index for Public Address (STIPA).

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

<a href="/cs/project/VK01030114" target="_blank" >VK01030114: Výzkum citlivosti dutých optických vláken na vlnění v akustickém spektru</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Optical Sensing and Detection VIII

ISBN

—

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

5

Strana od-do

„“-„“

Název nakladatele

Neuveden

Místo vydání

neuveden

Místo konání akce

Strasbourg

Datum konání akce

7. 4. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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