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Side-polished optical fiber structure for sodium nitrate sensor

Side-polished optical fiber has long been used to build fiber sensors in a range of applications. In this work, we demonstrate a biochemical sensor application leading to sodium nitrate solutions enhanced by the interaction of multi-walled carbon nanotubes (MWCNTs) with evanescent field of propagati...

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Main Authors:	Kadir, N. A. A., Wahid, M. H. A., Lokman, M. Q., Irawati, N., Hamzah, A., Harun, S. W.
Format:	Article
Published:	Institute of Electrical and Electronics Engineers Inc. 2020
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/87852/ http://www.dx.doi.org/10.1109/JSEN.2020.2973645
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id	my.utm.87852
record_format	eprints
spelling	my.utm.878522020-11-30T13:28:37Z http://eprints.utm.my/id/eprint/87852/ Side-polished optical fiber structure for sodium nitrate sensor Kadir, N. A. A. Wahid, M. H. A. Lokman, M. Q. Irawati, N. Hamzah, A. Harun, S. W. T Technology (General) Side-polished optical fiber has long been used to build fiber sensors in a range of applications. In this work, we demonstrate a biochemical sensor application leading to sodium nitrate solutions enhanced by the interaction of multi-walled carbon nanotubes (MWCNTs) with evanescent field of propagating light in a side-polished optical fiber. Insertion loss of this sensor was estimated to be around 5 dB, which is quite high and close to the core index of the polished fiber. The influence of MWCNTs film, particularly on its sensitivity to sodium nitrate, was investigated by coating single drop of MWCNTs on a side-polished single mode fiber. It is observed the improvement of sensitivity with MWCNTs coated side-polished optical fiber has reached 0.125 dBm/°C near the resonant wavelength of 1550 nm. The experimental results clearly verify the present of MWCNTs on side-polished optical fiber has slightly influence the performance of the fiber. The output power values and shifting of the spectral positions were observed during the sensor tests by exposure of the sodium nitrate solutions with increasing concentration from 1 to 7%. Institute of Electrical and Electronics Engineers Inc. 2020-06 Article PeerReviewed Kadir, N. A. A. and Wahid, M. H. A. and Lokman, M. Q. and Irawati, N. and Hamzah, A. and Harun, S. W. (2020) Side-polished optical fiber structure for sodium nitrate sensor. IEEE Sensors Journal, 20 (11). pp. 5929-5934. ISSN 1530-437X http://www.dx.doi.org/10.1109/JSEN.2020.2973645 DOI: 10.1109/JSEN.2020.2973645
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	T Technology (General)
spellingShingle	T Technology (General) Kadir, N. A. A. Wahid, M. H. A. Lokman, M. Q. Irawati, N. Hamzah, A. Harun, S. W. Side-polished optical fiber structure for sodium nitrate sensor
description	Side-polished optical fiber has long been used to build fiber sensors in a range of applications. In this work, we demonstrate a biochemical sensor application leading to sodium nitrate solutions enhanced by the interaction of multi-walled carbon nanotubes (MWCNTs) with evanescent field of propagating light in a side-polished optical fiber. Insertion loss of this sensor was estimated to be around 5 dB, which is quite high and close to the core index of the polished fiber. The influence of MWCNTs film, particularly on its sensitivity to sodium nitrate, was investigated by coating single drop of MWCNTs on a side-polished single mode fiber. It is observed the improvement of sensitivity with MWCNTs coated side-polished optical fiber has reached 0.125 dBm/°C near the resonant wavelength of 1550 nm. The experimental results clearly verify the present of MWCNTs on side-polished optical fiber has slightly influence the performance of the fiber. The output power values and shifting of the spectral positions were observed during the sensor tests by exposure of the sodium nitrate solutions with increasing concentration from 1 to 7%.
format	Article
author	Kadir, N. A. A. Wahid, M. H. A. Lokman, M. Q. Irawati, N. Hamzah, A. Harun, S. W.
author_facet	Kadir, N. A. A. Wahid, M. H. A. Lokman, M. Q. Irawati, N. Hamzah, A. Harun, S. W.
author_sort	Kadir, N. A. A.
title	Side-polished optical fiber structure for sodium nitrate sensor
title_short	Side-polished optical fiber structure for sodium nitrate sensor
title_full	Side-polished optical fiber structure for sodium nitrate sensor
title_fullStr	Side-polished optical fiber structure for sodium nitrate sensor
title_full_unstemmed	Side-polished optical fiber structure for sodium nitrate sensor
title_sort	side-polished optical fiber structure for sodium nitrate sensor
publisher	Institute of Electrical and Electronics Engineers Inc.
publishDate	2020
url	http://eprints.utm.my/id/eprint/87852/ http://www.dx.doi.org/10.1109/JSEN.2020.2973645
_version_	1685578999488577536
score	13.211869

Side-polished optical fiber structure for sodium nitrate sensor

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