Publications

Publications by CAP

2015

Optimisation algorithms for OSNR measurement based on polarisation nulling

Authors
Feres, M; Floridia, C; Romero, M;

Publication
Electronics Letters

Abstract

2015

Quantitative and Qualitative Monitoring System for Switchgear With Full Electrical Isolation Using Fiber-Optic Technology

Authors
Rosolem, JB; Bassan, FR; Penze, RS; Floridia, C; Leonardi, AA; Pereira, FR; Nascimento, CAM;

Publication
IEEE Transactions on Power Delivery

Abstract

2015

Optical fibre intrusion detection method based on Lefevre-loop and bidirectional polarisation optical time-domain reflectometer-C technique

Authors
Franciscangelis, C; Floridia, C; Fruett, F;

Publication
The Journal of Engineering

Abstract

2015

Optical sensing in high voltage transmission lines using power over fiber and free space optics

Authors
Rosolem, JB; Bassan, FR; Penze, RS; Leonardi, AA; Fracarolli, JPV; Floridia, C;

Publication
Optical Fiber Technology

Abstract

2014

Analysis of phase interrogation of SPR fiber optic sensors with characteristics tailored by the application of different metal-dielectric overlays

Authors
Moayyed, H; Leite, IT; Coelho, L; Santos, JL; Guerreiro, A; Viegas, D;

Publication
23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS

Abstract
Optical fiber sensors based on the phenomenon of plasmonic resonance can be interrogated applying different methods, the most common one being the spectral approach where the measurand information is derived from the reading of the wavelength resonance dip. In principle, a far better performance can be achieved considering the reading of the phase of the light at a specific wavelength located within the spectral plasmonic resonance. This approach is investigated in this work for fiber optic SPR sensors with overlays which are combinations of metallic and dielectric thin films, permitting not only to tune the wavelength of the SPR resonance but also the sensitivity associated with the phase interrogation of the sensors.

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2014

Characterization of a hybrid Fabry-Perot Cavity based on a four-bridge double-Y-shape-core microstructured fiber

Authors
Pinto, AMR; Lopez Aldaba, A; Lopez Amo, M; Frazao, O; Santos, JL; Baptista, JM; Baierl, H; Auguste, JL; Jamier, R; Roy, P;

Publication
Proceedings of SPIE - The International Society for Optical Engineering

Abstract
In this work, a hybrid Fabry-Perot interferometer based on a novel four-bridge microstructured fiber is presented and characterized. The characterization of this cavity is performed in the L-band using two different instruments: an optical spectrum analyzer and an optical backscatter reflectometer. The Fabry-Perot output signal presents linear variation with temperature changes (sensitivity 9.8-11.9 pm/°C), variation with the polarization states of light and high stability. © 2014 SPIE.

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