Scientific Results

Optical Fiber Sensing Based on Reflection Laser Spectroscopy

Year: 2010

Authors: 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.T.-Y., Chow J.H., De Natale P.

Autors Affiliation: Consiglio Nazionale delle Ricerche, Istituto Nazionale di Ottica (INO), Via Campi Flegrei, 34 I-80078 Napoli, Italy; Engineering Photonics Group, School of Engineering, Cranfield University, Bedford MK43 OAL, United Kingdom; Central Glass and Ceramic Research Institute (CSIR), 196, Raja S.C.Mullick Road, Kolkata-700 032, India; Department of Chemistry, Queen

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.

Journal/Review: SENSORS

Volume: 10 (3)      Pages from: 1823  to: 1845

More Information: The authors acknowledge financial support by CNR RSTL project, PON (Italian Ministry of Education, University and Research) and contribution by R. Abbate who passed away in September 2008. H.-P. L., J.A.B., N.B. and D.P.-S. acknowledge financial support from the Canadian Institute for Photonic Innovations, the Ontario Centres of Exellence, Queen\’s University and PARTEQ Innovations.
KeyWords: Detection performance; Fiber resonator; Frequency locking; Frequency-locking technique; High-birefringence fibers; Optical fiber sensing; Pound-Drever-Hall; Spectroscopic technique, Fibers; Laser spectroscopy; Locks (fasteners); Noise abatement; Resonators, Fiber Bragg gratings, glass fiber, birefringence; fiber optics; laser; review; spectroscopy, Birefringence; Fiber Optic Technology; Lasers; Optical Fibers; Spectrum Analysis
DOI: 10.3390/s100301823

Citations: 29
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