Listar por autor UPNA "Iribas Pardo, Haritz"

Mostrando ítems 1-20 de 20

    • Brillouin optical time-domain analyzer for extended sensing range using probe dithering and cyclic coding 

      Iribas Pardo, Haritz Upna Orcid; Loayssa Lara, Alayn Upna Orcid; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We present an enhanced performance Brillouin optical time-domain analysis sensor that uses dual probes waves with optical frequency modulation and cyclic coding. The frequency modulation serves to increase the probe power ...

    • Compensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna Orcid; Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (Optical Society of America, 2019)   Artículo / Artikulua  OpenAccess
      We demonstrate a technique to compensate the nonlocal effects that appear in Brillouin optical time-domain analysis sensors when pump pulses with limited extinction ratio are deployed. These recently discovered nonlocal ...

    • Contribution to the advancement of Brillouin optical time-domain analysis sensors 

      Iribas Pardo, Haritz Upna Orcid (2018)   Tesis doctoral / Doktoretza tesia  OpenAccess
      Distributed fiber optic sensors (DFOS) are becoming an increasingly used technology to monitor the integrity of structures. This is due to the fact that this technology can be embedded within the structure and provide ...

    • Cost-effective Brillouin optical time-domain analysis sensor using a single optical source and passive optical filtering 

      Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Sagüés García, Mikel Upna Orcid; Loayssa Lara, Alayn Upna Orcid (Hindawi Publishing Corporation, 2016)   Artículo / Artikulua  OpenAccess
      We present a simplified configuration for distributed Brillouin optical time-domain analysis sensors that aims to reduce the cost of the sensor by reducing the number of components required for the generation of the two ...

    • Cyclic coding for Brillouin optical time-domain analyzers using probe dithering 

      Iribas Pardo, Haritz Upna Orcid; Loayssa Lara, Alayn Upna Orcid; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (Optical Society of America, 2017)   Artículo / Artikulua  OpenAccess
      We study the performance limits of mono-color cyclic coding applied to Brillouin optical time-domain analysis (BOTDA) sensors that use probe wave dithering. BOTDA analyzers with dithering of the probe use a dual-probe-sideband ...

    • Detrimental effects in Brillouin distributed sensors caused by EDFA transient 

      Feng, Cheng; Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Schneider, Thomas; Loayssa Lara, Alayn Upna Orcid (Optical Society of AmericaIEEE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We investigate the deleterious effect and the error in Brillouin optical time-domain analyzers induced by the combination of a low extinction ratio pulse generation with the transient behavior of erbium-doped fiber amplifiers.

    • Effects of pump pulse extinction ratio in Brillouin optical time-domain analysis sensors 

      Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Feng, Cheng; Urricelqui Polvorinos, Javier Upna Orcid; Schneider, Thomas; Loayssa Lara, Alayn Upna Orcid (Optical Society of America, 2017)   Artículo / Artikulua  OpenAccess
      We report on two previously unknown non-local effects that have been found to impair Brillouin optical time-domain analysis (BOTDA) sensors that deploy limited extinction ratio (ER) pump pulses. The first one originates ...

    • Egituren egoeraren monitorizaziorako zuntz optikoan oinarritutako sentsore sinplifikatua 

      Iribas Pardo, Haritz Upna Orcid; Sagüés García, Mikel Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Loayssa Lara, Alayn Upna Orcid (Udako Euskal Unibertsitatea, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Brillouin hedatuko denbora eremu optikoaren analisian (BOTDA) oinarritutako sentsoreak, estruktura handien (100 km luzerako estrukturak) deformazioa eta tenperatura neurtzeko gaitasuna dute. Lan honetan, BOTDA konfigurazio ...

    • Enhanced tolerance to pulse extinction ratio in Brillouin optical time domain analysis sensors by dithering of the optical source 

      Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Sagüés García, Mikel Upna Orcid; Loayssa Lara, Alayn Upna Orcid (SPIE, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate the relaxation of the stringent requirements placed on the pulse extinction ratio in long-range Brillouin optical time-domain analysis sensors (BOTDA) by modulating the wavelength of the laser source that ...

    • Enhancement of signal-to-noise ratio in Brillouin optical time domain analyzers by dual-probe detection 

      Iribas Pardo, Haritz Upna Orcid; Loayssa Lara, Alayn Upna Orcid; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate a simple technique to enhance the signal-to-noise ratio (SNR) in Brillouin optical time-domain analysis sensors by the addition of gain and loss processes. The technique is based on the shift of the pump ...

    • Eskoletan digitalizazioa sustatzen 

      Iribas Pardo, Haritz Upna Orcid; Arriaran Olalde, Iñigo (Mondragon Unibertsitatea, 2019)   Artículo / Artikulua  OpenAccess

    • Fiber-optic brillouin distributed sensors: from dynamic to long-range measurements 

      Loayssa Lara, Alayn; Urricelqui Polvorinos, Javier Upna Orcid; Iribas Pardo, Haritz Upna Orcid; Mompó Roselló, Juan José Upna; Mariñelarena Ollacarizqueta, Jon Upna Orcid (CRC Press, 2018)   Capítulo de libro / Liburuen kapitulua  OpenAccess
      This chapter focuses on Brillouin optical time-domain analysis (BOTDA) sensors because they are the most successful Brillouin distributed sensors (BDS) type in terms of performance and practical applications. Distributed ...

    • Latest research on long-range Brillouin distributed sensing 

      Loayssa Lara, Alayn Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Mompó Roselló, Juan José Upna (SPIE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We review the latest developments in long-range Brillouin optical time-domain analysis sensors. The factors that impair the performance of these sensors, particularly in terms of their distance range, are discussed together ...

    • Mathematical content on STEM activities 

      Lasa Oyarbide, Aitzol Upna; Abaurrea Larrayoz, Jaione Upna Orcid; Iribas Pardo, Haritz Upna Orcid (Indonesian Mathematical SocietySriwijaya University (Indonesia), 2020)   Artículo / Artikulua  OpenAccess
      In this paper, a number of STEM educational proposals are systematically analyzed from the lens of mathematics education. An extensive innovation project was implemented during the 2019/2020 academic year in a pilot study ...

    • Non-local effects in Brillouin optical time-domain analysis sensors 

      Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Mompó Roselló, Juan José Upna; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Loayssa Lara, Alayn Upna Orcid (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Brillouin optical time-domain analysis (BOTDA) sensors have great potential to provide distributed measurements of temperature and strain over large structures with high spatial resolution and measurement precision. However, ...

    • 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 ...

    • Second-order non-local effects mitigation in BOTDA sensors by tracking the BFS profile 

      Mompó Roselló, Juan José Upna; Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate a technique to mitigate the residual second-order non-local effects in Brillouin optical time-domain analysis (BOTDA) sensors in which the Brillouin frequency shift (BFS) profile is not uniform along the ...

    • Second-order nonlocal effects mitigation in Brillouin optical time-domain analysis sensors by tracking the Brillouin frequency shift profile of the fiber 

      Mompó Roselló, Juan José Upna; Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Loayssa Lara, Alayn Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      We report on an additional limitation that has been found in Brillouin optical time-domain analysis (BOTDA) sensors due to the so-called second-order nonlocal effects (NLE). Second-order NLE appear in BOTDA setups that ...

    • Simplified Brillouin sensor for structural health monitoring applications based on passive optical filtering 

      Iribas Pardo, Haritz Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Sagüés García, Mikel Upna Orcid; Loayssa Lara, Alayn Upna Orcid (SPIE, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We present a simplified configuration for distributed Brillouin optical time domain analysis sensors. The technique is based on passive optical filtering of the spectral components generated in an RF-pulse-modulated optical ...

    • Zuntz optikoan oinarritutako sentsoreen prestazioen muga-efektu berria, egituren egoera monitorizatzea helburu 

      Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Loayssa Lara, Alayn Upna Orcid (Udako Euskal Unibertsitatea, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Brillouin denbora-eremu optikoaren analisian (BOTDA) oinarritutako sentsoreak estruktura handien (120 km luzerako estrukturak) deformazioa eta tenperatura neurtzeko gaitasuna dute, metro bateko bereizmen espazialarekin. ...
      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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