Highly sensitive long-period fiber-grating strain sensor with low temperature sensitivity

被引:214
作者
Wang, Yi-Ping [1 ]
Xiao, Limin
Wang, D. N.
Jin, Wei
机构
[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
关键词
D O I
10.1364/OL.31.003414
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A long-period fiber-grating sensor with a high strain sensitivity of -7.6 pm/mu epsilon and a low temperature sensitivity of 3.91 pm/degrees C is fabricated by use of focused CO2 laser beam to carve periodic grooves on a large-mode-area photonic crystal fiber. Such a strain sensor can effectively reduce the cross-sensitivity between strain and temperature, and the temperature-induced strain error obtained is only 0.5 mu E/degrees C without using temperature compensation. (c) 2006 Optical Society of America.
引用
收藏
页码:3414 / 3416
页数:3
相关论文
共 8 条
[1]   Temperature-insensitive and strain-insensitive long-period grating sensors for smart structures [J].
Bhatia, V ;
Campbell, DK ;
Sherr, D ;
DAlberto, TG ;
Zabaronick, NA ;
TenEyck, GA ;
Murphy, KA ;
Claus, RO .
OPTICAL ENGINEERING, 1997, 36 (07) :1872-1876
[2]   Strain-induced thermally tuned long-period fiber gratings fabricated on a periodically corrugated substrate [J].
Lin, CH ;
Li, Q ;
Au, AA ;
Jiang, Y ;
Wu, EB ;
Lee, HP .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2004, 22 (07) :1818-1827
[3]   Corrugated long-period fiber gratings as strain, torsion, and bending sensors [J].
Lin, CY ;
Wang, LA ;
Chern, GW .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2001, 19 (08) :1159-1168
[4]   Novel fiber-optic sensors based on long-period fiber gratings written by high-frequency CO2 laser pulses [J].
Rao, YJ ;
Wang, YP ;
Ran, ZL ;
Zhu, T .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2003, 21 (05) :1320-1327
[5]  
VAZIRI M, 1993, APPL OPTICS, V32, P6399, DOI 10.1364/AO.32.006399
[6]   A novel tunable gain equalizer based on a long-period fiber grating written by high-frequency CO2 laser pulses [J].
Wang, YP ;
Rao, YJ ;
Ran, ZL ;
Zhu, T ;
Hu, AZ .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (02) :251-253
[7]   Strain-insensitive and high-temperature long-period gratings inscribed in photonic crystal fiber [J].
Zhu, YN ;
Shum, P ;
Bay, HW ;
Yan, M ;
Yu, X ;
Hu, JJ ;
Hao, JZ ;
Lu, C .
OPTICS LETTERS, 2005, 30 (04) :367-369
[8]   Deep-notch, ultracompact long-period grating in a large-mode-area photonic crystal fiber [J].
Zhu, YN ;
Shum, P ;
Chong, JH ;
Rao, MK ;
Lu, C .
OPTICS LETTERS, 2003, 28 (24) :2467-2469