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Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings

A novel concept for an intrinsic relative humidity (RH) sensor that uses a tapered fiber Bragg grating (FBG) with zinc oxide nanostructure-embedded coatings is presented. Tests in a controlled environment indicate that the sensor has a linear and stable response behavior at 55% to 80% RH. The tapere...

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Main Authors: Aris, Aisyah Mohamad, Rahman, Husna Abdul, Irawati, Ninik, Harun, Sulaiman Wadi, Lim, Kok Sing, Ahad, Irma Zulaykha Mohamad
Format: Article
Published: American Scientific Publishers 2017
Subjects:
QD Chemistry
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/19822/
https://doi.org/10.1166/asl.2017.7398
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spelling my.um.eprints.198222018-12-27T03:04:21Z http://eprints.um.edu.my/19822/ Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings Aris, Aisyah Mohamad Rahman, Husna Abdul Irawati, Ninik Harun, Sulaiman Wadi Lim, Kok Sing Ahad, Irma Zulaykha Mohamad QD Chemistry TK Electrical engineering. Electronics Nuclear engineering A novel concept for an intrinsic relative humidity (RH) sensor that uses a tapered fiber Bragg grating (FBG) with zinc oxide nanostructure-embedded coatings is presented. Tests in a controlled environment indicate that the sensor has a linear and stable response behavior at 55% to 80% RH. The tapered FBG is fabricated using a chemical etching method followed by the coating of zinc oxide (ZnO) nanostructures onto the surface of the taper. Experimental results show that the ZnO coated FBG produced a better sensitivity of 2.51 pm/% in comparison to only 1.36 pm/% for the uncoated FBG in terms of its Bragg wavelength shift. The performance of the humidity sensor in regards to the reflected output power is also presented, showing a significant improvement in sensitivity from 0.0012 dBm/% for bare tapered fiber to 0.089 dBm/% with the ZnO coating. These results indicate the potential of ZnO nanostructures coating in enhancing the performance of the sensor for relative humidity sensing. American Scientific Publishers 2017 Article PeerReviewed Aris, Aisyah Mohamad and Rahman, Husna Abdul and Irawati, Ninik and Harun, Sulaiman Wadi and Lim, Kok Sing and Ahad, Irma Zulaykha Mohamad (2017) Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings. Advanced Science Letters, 23 (6). pp. 5452-5456. ISSN 1936-6612 https://doi.org/10.1166/asl.2017.7398 doi:10.1166/asl.2017.7398
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QD Chemistry
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle QD Chemistry
TK Electrical engineering. Electronics Nuclear engineering
Aris, Aisyah Mohamad
Rahman, Husna Abdul
Irawati, Ninik
Harun, Sulaiman Wadi
Lim, Kok Sing
Ahad, Irma Zulaykha Mohamad
Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
description A novel concept for an intrinsic relative humidity (RH) sensor that uses a tapered fiber Bragg grating (FBG) with zinc oxide nanostructure-embedded coatings is presented. Tests in a controlled environment indicate that the sensor has a linear and stable response behavior at 55% to 80% RH. The tapered FBG is fabricated using a chemical etching method followed by the coating of zinc oxide (ZnO) nanostructures onto the surface of the taper. Experimental results show that the ZnO coated FBG produced a better sensitivity of 2.51 pm/% in comparison to only 1.36 pm/% for the uncoated FBG in terms of its Bragg wavelength shift. The performance of the humidity sensor in regards to the reflected output power is also presented, showing a significant improvement in sensitivity from 0.0012 dBm/% for bare tapered fiber to 0.089 dBm/% with the ZnO coating. These results indicate the potential of ZnO nanostructures coating in enhancing the performance of the sensor for relative humidity sensing.
format Article
author Aris, Aisyah Mohamad
Rahman, Husna Abdul
Irawati, Ninik
Harun, Sulaiman Wadi
Lim, Kok Sing
Ahad, Irma Zulaykha Mohamad
author_facet Aris, Aisyah Mohamad
Rahman, Husna Abdul
Irawati, Ninik
Harun, Sulaiman Wadi
Lim, Kok Sing
Ahad, Irma Zulaykha Mohamad
author_sort Aris, Aisyah Mohamad
title Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
title_short Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
title_full Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
title_fullStr Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
title_full_unstemmed Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings
title_sort enhanced relative humidity sensing based on a tapered fiber bragg grating with zinc oxide nanostructure-embedded coatings
publisher American Scientific Publishers
publishDate 2017
url http://eprints.um.edu.my/19822/
https://doi.org/10.1166/asl.2017.7398
_version_ 1643691098480050176
score 13.211869

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