Structurally-modified tapered optical fiber sensors for long-term detection of liquids

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Structurally-modified tapered optical fiber sensors for long-term detection of liquids

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Structurally-modified tapered optical fiber sensors for long-term detection of liquids

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

OPTICAL FIBER TECHNOLOGY

ISSN

1068-5200

e-ISSN

1095-9912

Svazek periodika

47

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

187-191

Kód UT WoS článku

000454242800029

EID výsledku v databázi Scopus

2-s2.0-85058240674