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No-core fiber by self-image length optimization for optical based refractive index sensor

No-core fiber has been widely demonstrated as an alternative refractive index sensor over conventional optical fiber sensors. However, previous works demonstrated that the self-image length optimization of this sensor only focused on simulation and formed a conclusion without data analysis. Hence, t...

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Main Authors:	Razali, Nazirah Mohd, Lokman, Muhammad Quisar, Zuikafly, Siti Nur Fatin, Ahmad, Fauzan, Rahman, Mohd Azizi Abdul, Yahaya, Hafizal, Harun, Sulaiman Wadi
格式:	Article
出版:	Elsevier Science Inc 2022
主题:	TK Electrical engineering. Electronics Nuclear engineering
在线阅读:	http://eprints.um.edu.my/40347/
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spelling	my.um.eprints.403472023-11-22T09:13:52Z http://eprints.um.edu.my/40347/ No-core fiber by self-image length optimization for optical based refractive index sensor Razali, Nazirah Mohd Lokman, Muhammad Quisar Zuikafly, Siti Nur Fatin Ahmad, Fauzan Rahman, Mohd Azizi Abdul Yahaya, Hafizal Harun, Sulaiman Wadi TK Electrical engineering. Electronics Nuclear engineering No-core fiber has been widely demonstrated as an alternative refractive index sensor over conventional optical fiber sensors. However, previous works demonstrated that the self-image length optimization of this sensor only focused on simulation and formed a conclusion without data analysis. Hence, the sensitivity provided does not follow the standard unit, providing a limited evaluation of the sensitivity for refractive index measurement. This paper investigates the no-core fiber at a fixed diameter of 125 mu m and varies the length based on the self-image index ranging from 1 to 4 indexes to evaluate the sensor sensitivity at the analyte refractive index ranging from 1.3000 RIU to 1.4000 RIU via experimental study. The results showed that the dip wavelength shift non-linearly increased for all the samples as the analyte refractive index increased. The overall analysis showed that there were significant changes in the sensitivity between the odd and even self-image indexes, and there were no significant sensitivity changes between them. The best sensor performance was achieved by the NCF length of 2.90 cm with two self-image indexes. The sensitivity achieved by the sensor was 104.64 nm/RIU and 241.30 nm/ RIU for analyte refractive index ranging from 1.3000 RIU to 1.3600 RIU and 1.36000 RIU to 1.4000 RIU, respectively, via a linear fitting plot. Meanwhile, the figure merit value obtained by the sensor was 1.45 RIU-1 and 3.75 RIU-1 at analyte RI of 1.3600 RIU and 1.4000 RIU, respectively. In the future, this can be used as a reference for no core fiber length optimization. Elsevier Science Inc 2022-12 Article PeerReviewed Razali, Nazirah Mohd and Lokman, Muhammad Quisar and Zuikafly, Siti Nur Fatin and Ahmad, Fauzan and Rahman, Mohd Azizi Abdul and Yahaya, Hafizal and Harun, Sulaiman Wadi (2022) No-core fiber by self-image length optimization for optical based refractive index sensor. Optical Fiber Technology, 74. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2022.103133 <https://doi.org/10.1016/j.yofte.2022.103133>. 10.1016/j.yofte.2022.103133
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	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Razali, Nazirah Mohd Lokman, Muhammad Quisar Zuikafly, Siti Nur Fatin Ahmad, Fauzan Rahman, Mohd Azizi Abdul Yahaya, Hafizal Harun, Sulaiman Wadi No-core fiber by self-image length optimization for optical based refractive index sensor
description	No-core fiber has been widely demonstrated as an alternative refractive index sensor over conventional optical fiber sensors. However, previous works demonstrated that the self-image length optimization of this sensor only focused on simulation and formed a conclusion without data analysis. Hence, the sensitivity provided does not follow the standard unit, providing a limited evaluation of the sensitivity for refractive index measurement. This paper investigates the no-core fiber at a fixed diameter of 125 mu m and varies the length based on the self-image index ranging from 1 to 4 indexes to evaluate the sensor sensitivity at the analyte refractive index ranging from 1.3000 RIU to 1.4000 RIU via experimental study. The results showed that the dip wavelength shift non-linearly increased for all the samples as the analyte refractive index increased. The overall analysis showed that there were significant changes in the sensitivity between the odd and even self-image indexes, and there were no significant sensitivity changes between them. The best sensor performance was achieved by the NCF length of 2.90 cm with two self-image indexes. The sensitivity achieved by the sensor was 104.64 nm/RIU and 241.30 nm/ RIU for analyte refractive index ranging from 1.3000 RIU to 1.3600 RIU and 1.36000 RIU to 1.4000 RIU, respectively, via a linear fitting plot. Meanwhile, the figure merit value obtained by the sensor was 1.45 RIU-1 and 3.75 RIU-1 at analyte RI of 1.3600 RIU and 1.4000 RIU, respectively. In the future, this can be used as a reference for no core fiber length optimization.
format	Article
author	Razali, Nazirah Mohd Lokman, Muhammad Quisar Zuikafly, Siti Nur Fatin Ahmad, Fauzan Rahman, Mohd Azizi Abdul Yahaya, Hafizal Harun, Sulaiman Wadi
author_facet	Razali, Nazirah Mohd Lokman, Muhammad Quisar Zuikafly, Siti Nur Fatin Ahmad, Fauzan Rahman, Mohd Azizi Abdul Yahaya, Hafizal Harun, Sulaiman Wadi
author_sort	Razali, Nazirah Mohd
title	No-core fiber by self-image length optimization for optical based refractive index sensor
title_short	No-core fiber by self-image length optimization for optical based refractive index sensor
title_full	No-core fiber by self-image length optimization for optical based refractive index sensor
title_fullStr	No-core fiber by self-image length optimization for optical based refractive index sensor
title_full_unstemmed	No-core fiber by self-image length optimization for optical based refractive index sensor
title_sort	no-core fiber by self-image length optimization for optical based refractive index sensor
publisher	Elsevier Science Inc
publishDate	2022
url	http://eprints.um.edu.my/40347/
_version_	1783876703943131136
score	13.251813

No-core fiber by self-image length optimization for optical based refractive index sensor

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