Multiple connections of fiber-optic polarization sensors with localization possibilities

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Multiple connections of fiber-optic polarization sensors with localization possibilities

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/VK01030060" target="_blank" >VK01030060: Instant signal processing using hybrid systems in defence infrastructure</a><br>

Continuities

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

Publication year

2025

Confidentiality

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

Article name in the collection

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

978-1-5106-9345-6

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

4

Pages from-to

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Publisher name

SPIE

Place of publication

Praha

Event location

Prague, Czech Republic

Event date

Jun 9, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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