Pérez Herrera, Rosa Ana

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https://academica-e.unavarra.es/handle/2454/49777

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Pérez Herrera

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Rosa Ana

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Ingeniería Eléctrica, Electrónica y de Comunicación

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ISC. Institute of Smart Cities

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0000-0002-6856-9143

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88704

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8517

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2022 - 20232
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Author: Pérez Herrera, Rosa Ana × Subject: Refractive index measurements ×

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Now showing 1 - 2 of 2
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    PublicationOpen Access
    Erbium-doped fiber ring cavity for the measurement of refractive index variations
    (SPIE, 2023) Pérez Herrera, Rosa Ana; Soares, Liliana; Novais, Susana; Frazão, Orlando; Silva, Susana; Ingeniería Eléctrica, Electrónica y de Comunicación; Institute of Smart Cities - ISC; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
    In this work, an erbium-doped fiber ring cavity based on a 3dB optical coupler for refractive index measurements is presented and experimentally verified. This interrogation system, based on a 1 x 2 optical coupler, uses one of these output ports to increase the reflected optical power by means of a fiber Bragg Grating (FBG), used as a reflector. Moreover, the other output port is used as a refractive index sensing head. A spectral analysis of this interrogator system as well as a fiber cavity ring refractive index sensor characterization are carried out. Finally, an experimental comparison of the refractive index sensor range when the 3dB coupler is replace by a 1x3 one is also presented.
  • Thumbnail Image
    PublicationOpen Access
    Ring cavity erbium-doped fiber for refractive index measurements
    (MDPI, 2022) Pérez Herrera, Rosa Ana; Soares, Liliana; Silva, Susana; Frazão, Orlando; Ingeniería Eléctrica, Electrónica y de Comunicación; Institute of Smart Cities - ISC; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
    In this study, an interrogation system based on an erbium-doped fiber ring cavity for refractive index measurements is presented and experimentally demonstrated. This cavity ring includes a 1 × 3 coupler wherein one of the fiber output ports is used to increase the optical power of the system by means of an FBG used as a reflector. The other two output ports are used as a refractive index sensing head and reference port, respectively. An experimental demonstration of this proposed sensor system for the measurement of a distinct refractive index is presented.