Highly birefringent fiber-based temperature sensor utilizing the wavelength interrogation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F15%3A86095340" target="_blank" >RIV/61989100:27350/15:86095340 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2182148" target="_blank" >http://dx.doi.org/10.1117/12.2182148</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2182148" target="_blank" >10.1117/12.2182148</a>

Result language

angličtina

Original language name

Highly birefringent fiber-based temperature sensor utilizing the wavelength interrogation

Original language description

Spectral interferomeric methods utilizing the interference of polarization modes in a highly birefringent fiber to measure temperature are analyzed experimentally and theoretically. First, we consider an experimental setup comprising a white-light source, a polarizer, a sensing birefringent fiber, an analyzer and a spectrometer. Temperature sensing by this method is based on the wavelength interrogation, that is the position of a chosen spectral interference fringe in a channeled spectrum is measured as a function of temperature. Employing the setup, we carried out temperature sensing in the range from 300 to 370 K when a part of the sensing fiber is exposed to temperature changes. A wavelength shift of a selected spectral interference fringe is measured and the temperature sensitivity reaches -0.11 nm/K. Second, we consider a setup with another interferometer (represented by a polarizer, a birefringent quartz crystal and an analyzer) to increase the sensitivity of the temperature sensing. In this setup, the resultant channeled spectrum is with envelope which shifts with temperature. We analyze the new sensor theoretically and show that temperature sensing is once again possible by using the wavelength interrogation and the temperature sensitivity to be reached is 0.68 nm/K.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Article name in the collection

Proceedings of SPIE. Volume 9506

ISBN

978-1-62841-627-5

ISSN

0277-786X

e-ISSN

neuvedeno

Number of pages

8

Pages from-to

"95061I"

Publisher name

SPIE

Place of publication

Bellingham

Event location

Praha

Event date

Apr 13, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000356702200036