Long period fiber grating curvature sensor based on temperature-insensitive wavelength separation measurements

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 4596, Issue , 2001, Pages 104-109

  Liu, Yunqi ^a   Ng, Mei Nar ^b   Chiang, Kin Seng ^b   Yao, Jianping ^a  

^a NANYANG TECHNOLOGICAL UNIVERSITY   (Singapore)

^b CITY UNIVERSITY OF HONG KONG   (Hong Kong)

Author keywords

Bending; Curvature; Fiber sensor; Long period fiber grating; Temperature insensitive; Wavelength separation

Indexed keywords

BENDING (DEFORMATION); FIBER BRAGG GRATINGS; PHOTOSENSITIVITY; REFRACTIVE INDEX; RESONANCE; THERMAL EFFECTS; VIBRATION MEASUREMENT;

LONG PERIOD FIBER GRATINGS (LPGF); PHOTOSENSITIVE FIBERS;

FIBER OPTIC SENSORS;

EID: 0035770552     PISSN: 0277786X     EISSN: None     Source Type: Journal    
DOI: 10.1117/12.447331     Document Type: Article

References (10)

1. A.D. Kersey, M.A. Davis, H.J. Patrick, et al, "Fiber grating sensors," J. Lightwave Technol., 15, pp. 1442-1463, 1997.
2. V. Bhatia and A.M. Vengsarkar, "Optical fiber long-period grating sensors," Opt. Lett., 21, pp. 692-694, 1996.
3. Yunqi Lin, Chunfeng Ge, Donghui Zhao, Zhiguo Liu, Zhuanyun Guo, Xiaoyi Dong, "High-sensitivity long-period fiber grating temperature sensor based on intensity measurement," Proceedings of SPIE, Vol. 3740, pp. 492-495, 1999.
4. H.J. Patrick, G.M. Williams, A.D. Kersey, et al., "Hybrid fiber Bragg gràtting/long period fiber grating sensor for strain/temperature discrimination," IEEE Photo. Tech. Lett., 8, pp. 1223-1225, 1996.
5. Kin Seng Chiang, Yunqi Liu, Mei Nar Ng and Xiaoyi Dong, "Analysis of etched long-period fibre grating and its response to external refractive index," Electronics Letters, 36, pp. 966-967, 2000.
6. M.G. Xu, J.-L. Archambault, L. Reekie and J.P. Dakin, "Discrimination between strain and temperature effects using dual-wavelength fiber grating sensors," Electron. Lett., 30, pp. 1085-1087, 1994.
7. P.M. Cavaleiro, F.M. Araujo, L.A. Ferreira, et al., "Simultaneous measurement of strain and temperature using Bragg gratings written in germanosilicate and boron-codoped germanosilicate fibers," IEEE Photo. Tech. Lett., 11, pp. 1635-1637, 1999.
8. Zhihao Chen, Kin Seng Chiang, Mei Nar Ng, Yuen Ming Chan and Hong Ke, "Bent long-period fiber gratings for sensor applications," Proceedings of SPIE, Vol. 3897: 94-104, 1999.
9. Y. Liu, L. Zhang and I. Bennion, "Fibre optic load sensor with high transverse strain sensitivity based on long-period gratings in B/Ge co-doped fibre," Electron. Lett., 35, pp. 661-663, 1999.
10. H.J. Patrick, C.C. Chang and S.T. Vohra, "Long period fibre gratings for structural bending sensing," Electron. Lett., 34, pp. 1773-1775, 1998.