Refractometric sensor based on a phase-shifted long-period fiber grating
Applied Optics, Vol. 45, Issue 21, pp. 5066-5072 (2006)
http://dx.doi.org/10.1364/AO.45.005066
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Abstract
A refractometric sensor based on a phase-shifted long-period fiber grating written by electric-arc discharges is presented. Transmission and reflective configurations for refractive index measurements are studied. It is observed that the reflective topology permits better performance compared with the transmission one, which is the approach normally utilized in the context of long-period fiber sensing. The resolution achieved in the measurement of refractive index enables the application of this sensing head structure in demanding situations, such as the measurement of the level of salinity of water.
© 2006 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
ToC Category:
Diffraction and Gratings
History
Original Manuscript: December 20, 2005
Revised Manuscript: March 29, 2006
Manuscript Accepted: March 30, 2006
Virtual Issues
Vol. 1, Iss. 8 Virtual Journal for Biomedical Optics
Citation
Rosane Falate, Orlando Frazão, Gaspar Rego, José Luís Fabris, and José Luís Santos, "Refractometric sensor based on a phase-shifted long-period fiber grating," Appl. Opt. 45, 5066-5072 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-21-5066
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