Novel Fibre Optic Based Structures for Sensing Applications Orlando Frazão en Francisco Araújo en Paulo Caldas en Gaspar Rego en José Luís Santos en Luís Alberto Ferreira en 2017-11-16T12:25:48Z 2017-11-16T12:25:48Z 2007 en
dc.description.abstract Optical sensing based on optical fibres can be boosted to new performance levels by combining the fibre waveguide with other fibre structures, such as Bragg gratings, long period gratings, tapers, couplers, multimode interference devices and even microspheres. Along this path, it will be shown the feasibility to have new fibre optic interferometers highly sensitive to environmental parameters, particularly to the refractive index of the surrounding medium, to curvature, to flow and others. Also, it will be presented results that show the possibility to tune the intrinsic strain sensitivity of a fibre Bragg grating when this device and a fused taper are properly integrated. Finally, it will be described a fibre optic structure for simultaneous measurement of strain and temperature, which relies on the utilization of two cascaded fibre loop mirrors, containing one of them an Hi-Bi photonic crystal fibre, while the second one includes a length of internal elliptical cladding fibre en
dc.language eng en
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dc.rights info:eu-repo/semantics/openAccess en
dc.title Novel Fibre Optic Based Structures for Sensing Applications en
dc.type conferenceObject en
dc.type Publication en