Sensors 2010, 10(3), 1823-1845; doi:10.3390/s100301823

Optical Fiber Sensing Based on Reflection Laser Spectroscopy

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Received: 5 January 2010; in revised form: 3 February 2010 / Accepted: 5 February 2010 / Published: 5 March 2010
(This article belongs to the Special Issue Laser Spectroscopy and Sensing)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and acceleration measurements using heterodyne-detection and optical frequency-locking techniques. Silica fiber-ring cavities are used for chemical sensing based on evanescent-wave spectroscopy. Various arrangements for signal recovery and noise reduction, as an extension of most typical spectroscopic techniques, are illustrated and results on detection performances are presented.
Keywords: Fiber Bragg gratings; fiber resonator; Pound-Drever-Hall method; frequency locking; laser-frequency modulation; high-birefringence fiber
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MDPI and ACS Style

Gagliardi, G.; Salza, M.; Ferraro, P.; Chehura, E.; Tatam, R.P.; Gangopadhyay, T.K.; Ballard, N.; Paz-Soldan, D.; Barnes, J.A.; Loock, H.-P.; Lam, T.-Y.; Chow, J.H.; De Natale, P. Optical Fiber Sensing Based on Reflection Laser Spectroscopy. Sensors 2010, 10, 1823-1845.

AMA Style

Gagliardi G, Salza M, Ferraro P, Chehura E, Tatam RP, Gangopadhyay TK, Ballard N, Paz-Soldan D, Barnes JA, Loock H-P, Lam T-Y, Chow JH, De Natale P. Optical Fiber Sensing Based on Reflection Laser Spectroscopy. Sensors. 2010; 10(3):1823-1845.

Chicago/Turabian Style

Gagliardi, Gianluca; Salza, Mario; Ferraro, Pietro; Chehura, Edmond; Tatam, Ralph P.; Gangopadhyay, Tarun K.; Ballard, Nicholas; Paz-Soldan, Daniel; Barnes, Jack A.; Loock, Hans-Peter; Lam, Timothy T.-Y.; Chow, Jong H.; De Natale, Paolo. 2010. "Optical Fiber Sensing Based on Reflection Laser Spectroscopy." Sensors 10, no. 3: 1823-1845.

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