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%2F60461373%3A22310%2F19%3A43933901" target="_blank" >RIV/60461373:22310/19:43933901 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/19:00325666

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S106852001830470X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S106852001830470X?via%3Dihub</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&apos;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 mu m. 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 7.10(-4) for a refractive index range of from 1.405 to 1.425 with working point drift below 2.10(-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&apos;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 mu m. 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 7.10(-4) for a refractive index range of from 1.405 to 1.425 with working point drift below 2.10(-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

20200 - Electrical engineering, Electronic engineering, Information engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

Avail. online 13 Dec 2018

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