Ultrahigh-temperature regeneration of long period gratings (LPGs) in boron-codoped germanosilicate optical fibre

Liu, W; Cook, K; Canning, J

Ultrahigh-temperature regeneration of long period gratings (LPGs) in boron-codoped germanosilicate optical fibre

Liu, W Cook, K

Canning, J

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Publication Type:: Journal Article
Citation:: Sensors (Switzerland), 2015, 15 (8), pp. 20659 - 20677
Issue Date:: 2015-08-20

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Field	Value	Language
dc.contributor.author	Liu, W	en_US
dc.contributor.author	Cook, K https://orcid.org/0000-0001-6139-9586	en_US
dc.contributor.author	Canning, J https://orcid.org/0000-0001-8281-7783	en_US
dc.date.available	2015-08-14	en_US
dc.date.issued	2015-08-20	en_US
dc.identifier.citation	Sensors (Switzerland), 2015, 15 (8), pp. 20659 - 20677	en_US
dc.identifier.issn	1424-8220	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119234
dc.description.abstract	© 2015 by the authors; licensee MDPI, Basel, Switzerland. The regeneration of UV-written long period gratings (LPG) in boron-codoped germanosilicate “W” fibre is demonstrated and studied. They survive temperatures over 1000 °C. Compared with regenerated FBGs fabricated in the same type of fibre, the evolution curves of LPGs during regeneration and post-annealing reveal even more detail of glass relaxation. Piece-wise temperature dependence is observed, indicating the onset of a phase transition of glass in the core and inner cladding at ~500°C and ~250°C, and the melting of inner cladding between 860°C and 900°C. An asymmetric spectral response with increasing and decreasing annealing temperature points to the complex process dependent material system response. Resonant wavelength tuning by adjusting the dwell temperature at which regeneration is undertaken is demonstrated, showing a shorter resonant wavelength and shorter time for stabilisation with higher dwell temperatures. All the regenerated LPGs are nearly strain-insensitive and cannot be tuned by applying loads during annealing as done for regenerated FBGs.	en_US
dc.relation.ispartof	Sensors (Switzerland)	en_US
dc.relation.isbasedon	10.3390/s150820659	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Analytical Chemistry	en_US
dc.title	Ultrahigh-temperature regeneration of long period gratings (LPGs) in boron-codoped germanosilicate optical fibre	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.citation.volume	15	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	0602 Ecology	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0805 Distributed Computing	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	8	en_US
pubs.publication-status	Published	en_US
pubs.volume	15	en_US

Abstract:

© 2015 by the authors; licensee MDPI, Basel, Switzerland. The regeneration of UV-written long period gratings (LPG) in boron-codoped germanosilicate “W” fibre is demonstrated and studied. They survive temperatures over 1000 °C. Compared with regenerated FBGs fabricated in the same type of fibre, the evolution curves of LPGs during regeneration and post-annealing reveal even more detail of glass relaxation. Piece-wise temperature dependence is observed, indicating the onset of a phase transition of glass in the core and inner cladding at ~500°C and ~250°C, and the melting of inner cladding between 860°C and 900°C. An asymmetric spectral response with increasing and decreasing annealing temperature points to the complex process dependent material system response. Resonant wavelength tuning by adjusting the dwell temperature at which regeneration is undertaken is demonstrated, showing a shorter resonant wavelength and shorter time for stabilisation with higher dwell temperatures. All the regenerated LPGs are nearly strain-insensitive and cannot be tuned by applying loads during annealing as done for regenerated FBGs.

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http://hdl.handle.net/10453/119234