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Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation

A Type-IIa Regenerated Fibre Bragg Grating (RFBG) was fabricated via a thermal activation process at 600 °C, from a saturated type-I Hydrogenated (Type-IH) seed grating, inscribed in a germanium–boron codoped (Ge–B) fibre. Rarely, dynamics of the induced index change featured a negative index gratin...

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Main Authors: Cheong, Y.K., Chong, W.Y., Chong, S.S., Lim, K.S., Ahmad, Harith
Format: Article
Published: Elsevier 2014
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/14300/
http://www.sciencedirect.com/science/article/pii/S0030399214000103
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spelling my.um.eprints.143002018-10-11T02:56:40Z http://eprints.um.edu.my/14300/ Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation Cheong, Y.K. Chong, W.Y. Chong, S.S. Lim, K.S. Ahmad, Harith QC Physics A Type-IIa Regenerated Fibre Bragg Grating (RFBG) was fabricated via a thermal activation process at 600 °C, from a saturated type-I Hydrogenated (Type-IH) seed grating, inscribed in a germanium–boron codoped (Ge–B) fibre. Rarely, dynamics of the induced index change featured a negative index grating, wherein blueshifts of Bragg wavelength were observed during a thermal regeneration process. The Type-IIa RFBG has been tested and verified to be temperature stable upon two different sensing temperature ranges, which are 100–600 °C and 600–1000 °C, separately. For the low temperature range, the RFBG showed no significant hysteresis and demonstrated an excellent repeatability, however, with non-linear temperature responses. For the high temperature range, the RFBG showed linear temperature responses with negligible fluctuations in grating stability. The simple regenerative mechanism opens up a new possibility of realizing low cost and yet highly reproducible and reliable grating-based sensors. Elsevier 2014-10 Article PeerReviewed Cheong, Y.K. and Chong, W.Y. and Chong, S.S. and Lim, K.S. and Ahmad, Harith (2014) Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation. Optics & Laser Technology, 62. pp. 69-72. ISSN 0030-3992 http://www.sciencedirect.com/science/article/pii/S0030399214000103 doi:10.1016/j.optlastec.2014.01.007
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 QC Physics
spellingShingle QC Physics
Cheong, Y.K.
Chong, W.Y.
Chong, S.S.
Lim, K.S.
Ahmad, Harith
Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
description A Type-IIa Regenerated Fibre Bragg Grating (RFBG) was fabricated via a thermal activation process at 600 °C, from a saturated type-I Hydrogenated (Type-IH) seed grating, inscribed in a germanium–boron codoped (Ge–B) fibre. Rarely, dynamics of the induced index change featured a negative index grating, wherein blueshifts of Bragg wavelength were observed during a thermal regeneration process. The Type-IIa RFBG has been tested and verified to be temperature stable upon two different sensing temperature ranges, which are 100–600 °C and 600–1000 °C, separately. For the low temperature range, the RFBG showed no significant hysteresis and demonstrated an excellent repeatability, however, with non-linear temperature responses. For the high temperature range, the RFBG showed linear temperature responses with negligible fluctuations in grating stability. The simple regenerative mechanism opens up a new possibility of realizing low cost and yet highly reproducible and reliable grating-based sensors.
format Article
author Cheong, Y.K.
Chong, W.Y.
Chong, S.S.
Lim, K.S.
Ahmad, Harith
author_facet Cheong, Y.K.
Chong, W.Y.
Chong, S.S.
Lim, K.S.
Ahmad, Harith
author_sort Cheong, Y.K.
title Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
title_short Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
title_full Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
title_fullStr Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
title_full_unstemmed Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation
title_sort regenerated type-iia fibre bragg grating from a ge–b codoped fibre via thermal activation
publisher Elsevier
publishDate 2014
url http://eprints.um.edu.my/14300/
http://www.sciencedirect.com/science/article/pii/S0030399214000103
_version_ 1643689775687794688
score 13.211869

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