Structurally-modified tapered optical fiber sensors for long-term detection of liquids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00325666" target="_blank" >RIV/68407700:21230/19:00325666 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.yofte.2018.11.010" target="_blank" >https://doi.org/10.1016/j.yofte.2018.11.010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.yofte.2018.11.010" target="_blank" >10.1016/j.yofte.2018.11.010</a>
Alternative languages
Result language
angličtina
Original language name
Structurally-modified tapered optical fiber sensors for long-term detection of liquids
Original language description
We present an improvement of tapered optical fiber (TOF) sensor’s response for the detection of liquids, which is achieved by TOF surface structural modification. Our TOF sensors utilize the refractometric principle with enhanced evanescent-wave overlap due to the wavelength of 1550 nm and TOF waist diameters of 4–6 μm. The structural modification is achieved by long-term TOF exposition to hygroscopic liquid analytes and ambient atmosphere. To analyze the structural modification process, long-term as well as proof-of-principle tests have been carried out to evaluate TOF sensors stability in terms of sensitivity and resolution. Maximum sensitivity of over 2100 dB/RIU has been reached when TOF is used to detect a liquid analyte with refractive index of 1.415. Increase of more than 1400 dB/RIU is attributed to the enhanced sensitivity. Sample TOF sensors were then linearly calibrated and have been tested in more than one year-long continuous measurement campaign. Resolution better than 7x10^-4 for a refractive index range of from 1.405 to 1.425 with working point drift below 2x10^-4 over 12 months period has been achieved. Our results and observations are suitable for reliable, low-cost and application-tailored TOF sensor development.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
OPTICAL FIBER TECHNOLOGY
ISSN
1068-5200
e-ISSN
1095-9912
Volume of the periodical
47
Issue of the periodical within the volume
January
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
187-191
UT code for WoS article
000454242800029
EID of the result in the Scopus database
2-s2.0-85058240674