Optical Fiber Sensing Based on Reflection Laser Spectroscopy


Autoria(s): Gagliardi, G.; Salza, M.; Ferraro, P.; Chehura, E.; Tatam, R.P.; Gangopadhyay, T.K.; Ballard, N.; Paz-Soldan, D.; Barnes, J.A.; Loock, Hans-Peter; Lam, T.T.; Chow, J.H.; De Natale, P.
Data(s)

22/03/2016

22/03/2016

22/03/2016

Resumo

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.

Identificador

0746-9462

doi: 10.3390/s100301823

http://hdl.handle.net/1974/14141

Idioma(s)

en

Palavras-Chave #Fiber Bragg Gratings #Pound-Drever-Hall Method #Fiber Resonator #Frequency Locking #High-Birefringence Fiber #Laser-Frequency Modulation
Tipo

Article