INTERROGATION SYSTEMS FOR MULTIPLEXED FIBER BRAGG SENSORS
Abstract
Fibre Bragg grating (FBG) sensors have emerged as a reliable, non-destructive tool for monitoring, diagnostics and conrol in many structures. The versality of FBG sensors represent a main advantage over other technologies in the structural sensing field. Mounting many fiber Bragg gratings with different central wavelengths on single fiber creates capacities for building arrays of distributed sensors thus it is possible to determine the magnitude of the measured value and a spatial location of the measurand change. The interrogation units are responsible for reading the Bragg wavelength shift of the FBGs induced by various physical parameters like strain, temperature, etc. This research can provide useful information for practical applications.
Keywords
Optical fiber; fiber Bragg grating; FBG; interrogation; WDM; TDM; optical sensors
References
Dai Y., Liu Y., Leng J., Deng G., Asundi A.: A novel time-division multiplexing fiber Bragg grating sensor interrogator for structural health monitoring, Optics and Lasers in Engineering, vol. 47, 2009, 1028–1033.
Helsztyński J., Lewandowski L., Jasiewicz W., Jędrzejewski K.: System multipleksowanych braggowskich czujników światłowodowych. Elektronika 8/2009, 171–176.
Hirayama N., Sano Y.: Fiber Bragg grating temperature sensor for practical use, ISA Transactions, vol. 39, 2000, 169–173.
Kersey A. D., Davis M. A., Patrick H. J., Le Blanc M., Koo K. P., Askins C. G., Putnam M. A., Fiebele E. J.: Fiber Grating Sensors, Journal of Lightwave Technology, vol. 15, 1997, 1442-1463.
Lloyd G. D., Everall L. A., Sugden K., Bennion I.: Resonant Cavity Time-Division-Multiplexed Bragg Grating Sensor Interrogator, IEEE Photonics Technology Letters, vol. 16, 2004, 2323-2325.
Majumder M., Gangopadhyay T. K., Chakraborty A. K., Dasgupta K., Bhattacharya D.K.: Fibre Bragg gratings in structural health monitoring – Present status and applications, Sensors and Actuators A, vol. 147, 2008, 150–164.
Ng J. H., Zhou X., Yang X., Hao J.: A simple temperature-insensitive fiber Bragg grating displacement sensor, Optics Communications, vol. 273, 2007, 398–401.
Ramaswami R., Givarajan K., Sasaki G.: Optical Networks: A Practical Perspective. ELSEVIER, 2010.
Rao Y. J., Grattan K. T. V, Meggit B. T.: Fibre Bragg grating sensors: principles and applications, Optical Fibre Sensor Technology, vol. 2, 1998, 355–389.
Zhou D. P., Wei L., Liu W. K., Lit J. W. Y.: Simultaneous measurement of strain and temperature based on fiber Bragg grating combined with a high-birefringence fiber loop mirror, Optics Communications, vol. 281, 2008, 4640–4643.
Politechnika Lubelska, Instytut Elektroniki i Technik Informacyjnych Poland
Politechnika Lubelska, Instytut Elektroniki i Technik Informacyjnych Poland
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