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Characterization of long period gratings manufactured with fiber optic fusion splicer for sensor development
(Planta Piloto de Ingeniería Química, 2020-12-24)
A Long Period Grating (LPG) is a structure inscribed in an optical fiber that is of great interest in the field of communications and sensors. At Centro de Investigaciones Ópticas (CIOp), an LPG manufacturing process was ...
Redes de Bragg para medições em altas temperaturas
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2012-02-28)
This work presents results regarding pré-treatment optical fibers and / or post-treatment of Bragg gratings in order to stabilize and ensure the operational of such gratings for long periods at temperatures form 300 °C to ...
High sensitivity LPG Mach-Zehnder sensor for real-time fuel conformity analysis
(Iop Publishing LtdBristolInglaterra, 2013)
Experimental demonstration of fractional order differentiation using a long-period grating-based in-fiber modal interferometer
(Elsevier Science, 2016-12)
In this work we demonstrate both, experimentally and theoretically, that a long-period grating-based in-fiber modal interferometer can perform an all-optical arbitrary-order fractional differentiation. Experimentally, we ...
Instantaneous frequency measurement by in-fiber 0.5th order fractional differentiation
(Elsevier Science, 2016-07)
We experimentally demonstrate the possibility to retrieve the instantaneous frequency profile of a given temporal light pulse by in-fiber fractional order differentiation of 0.5th-order. The signal's temporal instantaneous ...
Lpg-based Sensor For Curvature And Vibration
(SPIE-INT SOC OPTICAL ENGINEERINGBELLINGHAM, 2016)