Refractometric Detection of Liquids Using Tapered Optical Fiber and Suspended Core Microstructured Fiber: A Comparison of Methods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00307995" target="_blank" >RIV/68407700:21230/17:00307995 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/AO.56.002388" target="_blank" >http://dx.doi.org/10.1364/AO.56.002388</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.56.002388" target="_blank" >10.1364/AO.56.002388</a>
Alternative languages
Result language
angličtina
Original language name
Refractometric Detection of Liquids Using Tapered Optical Fiber and Suspended Core Microstructured Fiber: A Comparison of Methods
Original language description
Detecting explosive, flammable or toxic industrial liquids reliably and accurately is a matter of civic responsibility which cannot be treated lightly. Tapered optical fibers (TOFs) and suspended core microstructured optical fibers (SC MOFs) were separately used as sensors of liquids without being compared to each other. We present a highly-sensitive time-stable TOF sensor incorporated in the pipeline system for in-line regime of measurement. The paper is furthermore focused on the comparison of this TOF and SC MOF of similar parameters for detection of selected liquids. A validated method that incorporates TOF and SC MOF of small core (waist) diameter for refractometric detection is presented. The principle of detection is based on the overlap of an enhanced evanescent wave with a liquid analyte which either fills the cladding holes of the SC MOF, or surrounds the waist area of the TOF. Optical power within the evanescent wave for both sensing structures and selected liquid analytes is analyzed. Measurement results concerning TOF and SC MOF are compared. Calculations to ascertain the limit of detection (LOD) for each sensor and the sensitivity (S) to refractive indices of liquid analytes in the range of 1.4269 to 1.4361 were performed at a wavelength of 1550 nm with the lowest refractive index step of 0.0007. Results affirming that S = 600.96 dB/RIU and LOD = 0.0733 RIU for the SC MOF and S = 1143.2 dB/RIU and LOD of 0.0026 RIU for the TOF sensor were achieved, clearly illustrating that TOF based sensors can reach close to two times greater sensitivity and 30-times higher limit of detection. The paper extends the comparison of the fiber sensors by discussing the potential applications.
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Optics
ISSN
1559-128X
e-ISSN
2155-3165
Volume of the periodical
56
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
2388-2396
UT code for WoS article
000398087100022
EID of the result in the Scopus database
2-s2.0-85016027820