Results 11 to 20 of about 821,428 (206)

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K., Flockhart, G. M. H., Cranch, Geoffrey A.   +2 more
core   +4 more sources

Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]

, 2004
We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Flockhart, G M H, Read, I, Foote, P D, Maier, R R J, Chisholm, K E, Barton, J S, Zhang, L, Bennion, I, MacPherson, W N, Jones, J D C   +9 more
core   +4 more sources

Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement [PDF]

, 2006
We report interferometric interrogation of fiber Bragg gratings in separate cores of a multicore fiber for high resolution quasi-static and dynamic bend measurements.
Kirkendall, Clay K., Flockhart, Gordon M. H., Cranch, Geoffrey A.   +2 more
core   +2 more sources

Effects of random phase and amplitude errors in optical fiber Bragg gratings [PDF]

, 2000
This paper studies the influence of random phase and amplitude fabrication errors on the performance of optical filters based on fiber Bragg gratings (FBGs).
Feced, R., Zervas, M.N.
core   +1 more source

Laser-frequency locking techniques for high-sensitivity strain measurements by high-birefringence fiber Bragg gratings and resonators [PDF]

, 2007
A new approach to simultaneously interrogate orthogonal axes of single Fiber- Bragg-Gratings (FBGs) and FBG-FabryPerot resonator sensors fabricated in linearly highly birefringent (HiBi) fibre is presented.
Ferraro, P., Salza, M., R. Tatam, P. De Natale, Gagliardi, G., A. Di Maio, P. Ferraro, E. Chehura, M. Salza, De Natale, P., Tatam, Ralph P., Di Maio, A., Chehura, Edmon, G. Gagliardi, Salza M, Tatam R, Ferraro P, Di Maio A, De Natale P, Gagliardi G, Chehura E   +20 more
core   +1 more source

Rapidly reconfigurable optical phase encoder-decoders based on fiber Bragg gratings [PDF]

, 2006
We demonstrate the capacity for fast dynamic reconfiguration of optical code-division multiple access (OCDMA) phase en/decoders based on fiber Bragg gratings and a thermal phase-tuning technique.
Mokhtar, M.R., Ibsen, M., Tian, C., Petropoulos, P., Richardson, D.J., Zhang, Z.   +5 more
core   +1 more source

Modified coupled-mode model for thermally chirped polymer Bragg gratings [PDF]

, 2010
A modified coupled-mode (CM) model is proposed for the optical behavior of thermally chirped Bragg gratings. The model accounts for the axial gradient in the modulation wavenumber, which has been ignored in the classical CM model. The model is used to
Sher, Ilai, Bar-Cohen, A., Han, B., Ilai Sher, Bongtae Han, Avram Bar-Cohen   +5 more
core   +1 more source

Localized Dispersive States in Nonlinear Coupled Mode Equations for Light Propagation in Fiber Bragg Gratings. [PDF]

, 2009
Dispersion effects induce new instabilities and dynamics in the weakly nonlinear description of light propagation in fiber Bragg gratings. A new family of dispersive localized pulses that propagate with the group velocity is numerically found, and its ...
Martel Escobar, Carlos, Higuera, María, Carrasco, J.   +2 more
core   +1 more source

Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement [PDF]

, 2006
High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre.
Flockhart, G M H, Kirkendall, Clay K., Clay K. Kirkendall, Cranch, G A, Flockhart, Gordon M. H., Geoffrey A. Cranch, Kirkendall, C K, Gordon M. H. Flockhart, Cranch, Geoffrey A.   +8 more
core   +1 more source

Optical fiber sensing based on reflection laser spectroscopy [PDF]

, 2010
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 ...
De Natale, Paolo, Ralph P. Tatam, Chow, Jong H., Jong H. Chow, Mario Salza, Ballard, Nicholas, Gangopadhyay, Tarun, Paz-Soldan, Daniel, Tatam, Ralph, Ferarro, Pietro, Lam, Timothy T. -Y., Lam, Timothy T-Y, Gianluca Gagliardi, Barnes, Jack A., Daniel Paz-Soldan, Gangopadhyay, Tarun Kumar, Tatam, Ralph P., Chow, Jong, Pietro Ferraro, Tarun K. Gangopadhyay, Jack A. Barnes, Loock, Hans-Peter, Edmond Chehura, Paolo De Natale, Gangopadhyay, Tarun K., Salza, Mario, Ferraro, Pietro, Hans-Peter Loock, Nicholas Ballard, Barnes, Jack, Chehura, Edmon, Gagliardi, Gianluca, Timothy T.-Y. Lam, Lam, Timothy, Chehura, Edmond, Salza M, Lam, T.T., Gagliardi, G., Tatam RP, De Natale P, Barnes JA, Tatam, R.P., Chow JH, Ferraro P, Gangopadhyay, T.K., Chehura, E., Loock HP, Gagliardi G, PazSoldan D, Chow, J.H., Ferraro, P., Lam TTY, Salza, M., Ballard N, Chehura E, Gangopadhyay TK   +55 more
core   +1 more source