Rodrigues Pinto, Ana Margarida

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https://academica-e.unavarra.es/handle/2454/49864

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Rodrigues Pinto

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Ana Margarida

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Ingeniería Eléctrica y Electrónica

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1175487

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9847

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2011 - 20154
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Author: Santos, José Luís ×

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Now showing 1 - 4 of 4
  • Thumbnail Image
    PublicationOpen Access
    Characterization of a hybrid Fabry-Pérot Cavity based on a four-bridge double-Y-shape-core microstructured fiber
    (SPIE, 2014-06-02) Rodrigues Pinto, Ana Margarida; López Aldaba, Aitor; López-Amo Sáinz, Manuel; Frazão, Orlando; Santos, José Luís; Baptista, José Manuel; Baierl, Hardy; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Institute of Smart Cities - ISC
    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/ºC), variation with the polarization states of light and high stability.
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    PublicationOpen Access
    Micro-displacement sensor based on a hollow-core photonic crystal fiber
    (MDPI, 2012) Rodrigues Pinto, Ana Margarida; López-Amo Sáinz, Manuel; Baptista, José Manuel; Santos, José Luís; Frazão, Orlando; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    A sensing head based on a hollow-core photonic crystal fiber for in-reflection measurement of micro-displacements is presented. The sensing structure takes advantage of the multimodal behavior of a short segment of hollow-core photonic crystal fiber in-reflection, being spliced to a single mode fiber at its other end. A modal interferometer is obtained when the sensing head is close to a mirror, through which displacement is measured.
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    PublicationOpen Access
    Multiwavelength Raman fiber lasers using Hi-Bi photonic crystal fiber loop mirrors combined with random cavities
    (IEEE / OSA, 2011) Rodrigues Pinto, Ana Margarida; Frazão, Orlando; Santos, José Luís; López-Amo Sáinz, Manuel; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    Different multiwavelength Raman fiber lasers based on a hybrid cavity set-up are proposed. The lasing schemes are based in highly birefringent photonic crystal fiber loop mirrors combined with random cavities. The Hi-Bi PCF loop mirrors are characterized by an interferometric output; whereas the random mirrors are created by cooperative Rayleigh scattering due to Raman gain. This configuration allows suppression of Rayleigh associated noise growth, while taking advantage of it as an active part of the laser cavity, enhancing the achievable gain. The proposed fiber lasers present stable operation at room temperature although different output maxima and shapes depending on the fiber loop mirror/random mirror combination.
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    PublicationOpen Access
    Experimental and numerical characterization of a hybrid Fabry-Perot cavity for temperature sensing
    (MDPI, 2015) López Aldaba, Aitor; Rodrigues Pinto, Ana Margarida; López-Amo Sáinz, Manuel; Frazão, Orlando; Santos, José Luís; Baptista, José Manuel; Baierl, Hardy; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    A hybrid Fabry-Pérot cavity sensing head based on a four-bridge microstructured fiber is characterized for temperature sensing. The characterization of this cavity is performed numerically and experimentally in the L-band. The sensing head output signal presents a linear variation with temperature changes, showing a sensitivity of 12.5 pm/°C. Moreover, this Fabry-Pérot cavity exhibits good sensitivity to polarization changes and high stability over time.