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...

Full description

Bibliographic Details
Main Authors:	Cheong, Y.K., Chong, W.Y., Chong, S.S., Lim, K.S., Ahmad, H.
Format:	Article
Published:	Elsevier 2014
Subjects:	QC Physics
Online Access:	http://www.sciencedirect.com/science/article/pii/S0030399214000103 http://www.sciencedirect.com/science/article/pii/S0030399214000103

id	um-14300
recordtype	eprints
spelling	um-143002015-10-26T00:58:56Z 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, H. 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 http://www.sciencedirect.com/science/article/pii/S0030399214000103 Cheong, Y.K.; Chong, W.Y.; Chong, S.S.; Lim, K.S.; Ahmad, H. (2014) Regenerated Type-IIa Fibre Bragg Grating from a Ge–B codoped fibre via thermal activation. Optics & Laser Technology <http://eprints.um.edu.my/view/publication/Optics_=26_Laser_Technology.html>, 62. pp. 69-72. ISSN 0030-3992 http://eprints.um.edu.my/14300/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	QC Physics
spellingShingle	QC Physics Cheong, Y.K. Chong, W.Y. Chong, S.S. Lim, K.S. Ahmad, H. 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, H.
author_facet	Cheong, Y.K. Chong, W.Y. Chong, S.S. Lim, K.S. Ahmad, H.
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://www.sciencedirect.com/science/article/pii/S0030399214000103 http://www.sciencedirect.com/science/article/pii/S0030399214000103
first_indexed	2018-09-06T06:21:38Z
last_indexed	2018-09-06T06:21:38Z
_version_	1610838073411633152

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

Similar Items