Now showing items 1-6 of 6

    • Dual-probe linearly-configured BOCDA system with enlarged modulation amplitude 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Kim, Yong Hyun; Loayssa Lara, Alayn Upna Orcid; Song, Kwang Yong (Optical Society of America, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We present and experimentally demonstrated a linearly-configured Brillouin optical correlation domain analysis (LC-BOCDA) system that allows large modulation amplitude (Δf) based on a dual probe wave and the control of ...
    • Enhancement of the dynamic range in slope-assisted coherent brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      We present two techniques that provide an extension of the dynamic range of coherent Brillouin optical time-domain analysis (BOTDA) sensors for dynamic measurements. This type of BOTDA sensors rely on self-heterodyne ...
    • Gain dependence of measured spectra in coherent Brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (SPIE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We report on the effects of large pump pulse powers on Brillouin optical time-domain analysis (BOTDA) sensors based on phase-modulated probe wave and coherent detection. It is found that the large Brillouin gain that comes ...
    • Gain dependence of the phase-shift spectra measured in coherent Brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      We report on the effects of large pump pulse powers on Brillouin optical time-domain analysis (BOTDA) sensors based on phase-modulated probe wave and coherent self-heterodyne detection. These sensors are particularly ...
    • Pulse coding linearization for Brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Iribas Pardo, Haritz Upna Orcid; Loayssa Lara, Alayn Upna Orcid (Optical Society of America, 2018)   Artículo / Artikulua  OpenAccess
      We introduce a simple method to extend the performance of pulse coding techniques in their application to Brillouin optical time-domain analysis sensors (BOTDA). It is based on applying a simple logarithmic processing on ...
    • Structural health monitoring of solar trackers using distributed fiber optic sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Mompó Roselló, Juan José Upna; Zurita Gabasa, Jesús Upna; Urricelqui Polvorinos, Javier Upna Orcid; Júdez Colorado, Aitor Upna; López-Amo Sáinz, Manuel Upna Orcid; Jiménez Romero, Sergio; Achaerandio, Álvaro; Loayssa Lara, Alayn Upna Orcid (SPIE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate the application of a novel type of distributed fiber optic sensors (DFOSs) to dynamically monitor the effects of wind on solar tracker structures used in photovoltaic power stations. This DFOS is based on ...