[1] H. J. Patrick, G. M. Williams, A. D. Kersey, J. R. Pedrazzani, and A. M. Vengsarkar, “Hybrid fiber Bragg grating long period fiber grating sensor for strain/temperature discrimination,” IEEE Photonics Technology Letters, vol. 8, no. 9, pp. 1223-1225, 1996.
[2] A. Selvarajan, “Fiber optic sensors and their applications,” Indian institute of science, Bangalore-560 012, 2010.
[3] Z. Zhou, T. W. Graver, L. Hsu, and J. Ou, “Techniques of advanced FBG sensors: fabrication, demodulation, encapsulation and their application in the structural health monitoring of bridges,” Pacific Science Review, vol. 5, no. 1, pp.116-121, 2003.
[4] W. W. Morey, G. Meltz, and W. H. Glenn, “Fiber optic Bragg grating sensors,” in Proc. SPIE, vol. 1169, pp. 98-107, 1989.
[5] E. J. Friebele, “Fiber Bragg grating strain sensors: present and future applicationsin smart structures,” Optics and Photonics News, vol. 9, no. 8, pp. 33-37, 1998.
[6] A. Othonos, “Fiber Bragg gratings,” Review of Scientific Instruments, vol. 68, no. 12, pp. 4309-4341, 1997.
[7] G. Gagliardi, M. Salza, P. Ferraro, and P. D. Natale, “Interrogation of FBG-based strain sensors by means of laser radio-frequency modulation techniques,” Journal of Optics A: Pure and Applied Optics, vol. 8, no. 7, pp. S507-S513, 2006.
[8] C. Floridia, A. C. Santa Brígida, F. Borin, D. C. Dini, P. Alcantara Jr., and N. Bramatti, “Single-axis fiber optic proximity sensor based on magnetic force for hydrogenerator applications”, presented at Proc. IASTED International Conference, Crete, Greece, 2008.
[9] G. P. Agrawal, Fiber Optics Communiction Systems. New York: John Wiley & Sons, 1992.
[10] A. D. Kersey, “A review of recent developments in fiber optic sensor technology, fiber optic smart structures,” U. S. Naval Research Laboratory, Washington, February 13, 1996.
[11] T. Hiroshi, K. Kenji, and O. Shinji, “Ultrasonic sensitivity of strain-insensitive fiber Bragg grating sensors and evaluation of ultrasound-induced strain,” Sensors, vol. 10, no. 12, pp. 11248-11258, 2010.
