TY - JOUR
T1 - Tailoring the temperature and strain coefficients of Type I and Type IA dual grating sensors
T2 - the impact of hydrogenation conditions
AU - Kalli, K.
AU - Simpson, A.G.
AU - Zhou, K.
AU - Zhang, L.
AU - Bennion, I.
PY - 2006/4/6
Y1 - 2006/4/6
N2 - We report experimental findings for tailoring the temperature and strain coefficients of Type I and Type IA fibre Bragg gratings by influencing the photosensitivity presensitization of the host optical fibre. It is shown that by controlling the level of hydrogen saturation, via hot and cold hydrogenation, it is possible to produce gratings with lower thermal coefficients. Furthermore, there is a larger difference between the Type I and Type IA thermal coefficients and a significant improvement in the matrix condition number, which impacts the ability to recover accurate temperature and strain data using the Type 1-1A dual grating sensor. © 2006 IOP Publishing Ltd.
AB - We report experimental findings for tailoring the temperature and strain coefficients of Type I and Type IA fibre Bragg gratings by influencing the photosensitivity presensitization of the host optical fibre. It is shown that by controlling the level of hydrogen saturation, via hot and cold hydrogenation, it is possible to produce gratings with lower thermal coefficients. Furthermore, there is a larger difference between the Type I and Type IA thermal coefficients and a significant improvement in the matrix condition number, which impacts the ability to recover accurate temperature and strain data using the Type 1-1A dual grating sensor. © 2006 IOP Publishing Ltd.
KW - fibre Bragg gratings
KW - optical fibre sensors
KW - photosensitivity
KW - temperature and strain sensors
KW - type IA grating
UR - http://www.scopus.com/inward/record.url?scp=33646181176&partnerID=8YFLogxK
UR - http://iopscience.iop.org/0957-0233/17/5/S02/
U2 - 10.1088/0957-0233/17/5/S02
DO - 10.1088/0957-0233/17/5/S02
M3 - Article
SN - 0957-0233
VL - 17
SP - 949
EP - 954
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 5
ER -