Multiple connections of fiber-optic polarization sensors with localization possibilities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F26%3A00564669" target="_blank" >RIV/60162694:G43__/26:00564669 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3072735" target="_blank" >10.1117/12.3072735</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multiple connections of fiber-optic polarization sensors with localization possibilities

Popis výsledku v původním jazyce

This paper focuses on multiple connections of fiber optic polarization sensors with the aim of localization. The low-weight non-electric fiber optic sensor is suitable for use in hazardous environments due to its properties and high sensitivity to the measured quantities. Precise localization of the point of change in the measured quantity during multiple connections is technically challenging. This causes inefficiency for the direct evaluation method using optical power. A suitable solution is to divide the optical power into multiple branches in different ratios before reaching the sensor itself. Based on the magnitude of the power response, the change in the measured quantity as temperature and strain can be localized. This is achieved by using a combination of a power splitter and polarization beam splitter. Different optical fiber lengths ensure different power responses at individual points, which can also be used for localization in serial connection. This paper also addresses long-distance power-supplying via a single-mode fiber and solves the problem of polarization by an auxiliary circuit of a power and polarization stabilization. The technical solution is suitable for a single-fiber arrangement. Experimental verification was performed for temperature and tension changes, which are the primary sensed quantities for this type of sensor, and the evaluation was carried out using optical power. Another potential use for this sensor can be in speed measurement, used in military technology and robotics.

Název v anglickém jazyce

Multiple connections of fiber-optic polarization sensors with localization possibilities

Popis výsledku anglicky

This paper focuses on multiple connections of fiber optic polarization sensors with the aim of localization. The low-weight non-electric fiber optic sensor is suitable for use in hazardous environments due to its properties and high sensitivity to the measured quantities. Precise localization of the point of change in the measured quantity during multiple connections is technically challenging. This causes inefficiency for the direct evaluation method using optical power. A suitable solution is to divide the optical power into multiple branches in different ratios before reaching the sensor itself. Based on the magnitude of the power response, the change in the measured quantity as temperature and strain can be localized. This is achieved by using a combination of a power splitter and polarization beam splitter. Different optical fiber lengths ensure different power responses at individual points, which can also be used for localization in serial connection. This paper also addresses long-distance power-supplying via a single-mode fiber and solves the problem of polarization by an auxiliary circuit of a power and polarization stabilization. The technical solution is suitable for a single-fiber arrangement. Experimental verification was performed for temperature and tension changes, which are the primary sensed quantities for this type of sensor, and the evaluation was carried out using optical power. Another potential use for this sensor can be in speed measurement, used in military technology and robotics.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/VK01030060" target="_blank" >VK01030060: Okamžité zpracování signálů pomocí hybridních systémů v obranné infrastruktuře</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>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

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

978-1-5106-9345-6

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Praha

Místo konání akce

Prague, Czech Republic

Datum konání akce

9. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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