Gagliardi, GianlucaSalza, MarioFerraro, PietroChehura, EdmonTatam, Ralph P.Gangopadhyay, Tarun K.Ballard, NicholasPaz-Soldan, DanielBarnes, Jack A.Loock, Hans-PeterLam, Timothy T-YChow, Jong H.De Natale, Paolo2011-05-162011-05-162010-03-05Gagliardi G, Salza M, Ferraro P, et al., (2010) Optical fiber sensing based on reflection laser spectroscopy. Sensors, Volume 10, Issue 3, March 2010, pp. 1823-18451424-8220https://doi.org/10.3390/s100301823http://dspace.lib.cranfield.ac.uk/handle/1826/5056An 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.pp. 1823-1845en-UKFiber Bragg gratingsfiber resonatorPound-Drever-Hall methodfrequency lockinglaser-frequency modulationhigh-birefringence fiberArticle103