Listar Comunicaciones y ponencias de congresos - Biltzarrak eta Argitalpenak por autor UPNA "Urricelqui Polvorinos, Javier"
Mostrando ítems 1-18 de 18
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Brillouin distributed sensing assisted by Brillouin amplification of pump pulses
Urricelqui Polvorinos, Javier
; Sagüés García, Mikel ; Loayssa Lara, Alayn (IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena 
We demonstrate, for the first time to our knowledge, the extension of the measurement range of Brillouin distributed sensors (BDS) by using a distributed Brillouin amplifier (DBA) to compensate the attenuation of the ... -
Brillouin optical time-domain analysis sensor with amplification of pump pulses and tolerant to non-local effects
Mompó Roselló, Juan José; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (SPIE, 2016)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a simple technique to provide conventional Brillouin optical time-domain analysis sensor with compensation for pump pulse attenuation and tolerance to non-local effects. The technique is based on operating ... -
Brilloun optical time domain analysis sensor assisted by a Brillouin distributed amplifier
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate the extension of the measurement range of Brillouin optical time-domain analysis (BOTDA) sensors using a distributed Brillouin amplifier (DBA). The technique is based on injecting a DBA pump wave in the ... -
Dynamic BOTDA measurements using Brillouin phase-shift
Urricelqui Polvorinos, Javier ; Zornoza Indart, Ander; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2012)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase-shift instead of the conventional Brillouin gain. This provides the advantage of measurements that ... -
Enhanced tolerance to pulse extinction ratio in Brillouin optical time domain analysis sensors by dithering of the optical source
Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Gain dependence of measured spectra in coherent Brillouin optical time-domain analysis sensors
Mariñelarena Ollacarizqueta, Jon ; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (SPIE, 2016)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Latest research on long-range Brillouin distributed sensing
Loayssa Lara, Alayn ; Urricelqui Polvorinos, Javier ; Iribas Pardo, Haritz ; Mariñelarena Ollacarizqueta, Jon ; Mompó Roselló, Juan José (SPIE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Mitigation of modulation instability in Brillouin distributed fiber sensors by using orthogonal polarization pulses
Urricelqui Polvorinos, Javier ; Alem, Mehdi; Sagüés García, Mikel ; Thévenaz, Luc; Loayssa Lara, Alayn ; Soto, Marcelo A. (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
A technique based on the use of orthogonally-polarized pulses is proposed to mitigate the detrimental impact of modulation instability on Brillouin distributed fiber sensors. While the theoretical underpinnings of the ... -
Optical fiber sensors for asphalt structures monitoring
Bravo Acha, Mikel ; Rota Rodrigo, Sergio ; Leandro González, Daniel ; Loayssa Lara, Alayn; Urricelqui Polvorinos, Javier ; Bravo Acha, A.; Bravo Navas, M.; Mitxelena, J. R.; Martínez Mazo, J. J.; López-Amo Sáinz, Manuel (Optica Publishing Group, 2016)
Contribución a congreso / Biltzarrerako ekarpena
A novel optical fiber installation method was explored for asphalt monitoring. Glassfiber polymer encapsulated SMF was installed in the intermediate and surface layers in order to study the strain sensitivity with a ... -
Overcoming non-local effects and Brillouin threshold limitations in Brillouin distributed sensors
Urricelqui Polvorinos, Javier ; Ruiz Lombera, Rubén; Sagüés García, Mikel ; Mirapeix, Jesús; López Higuera, José Miguel; Loayssa Lara, Alayn (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis sensor that is able to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber and that ... -
Phase-shift based BOTDA measurements tolerant to non-local effects
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2013)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a BOTDA sensor based on the use of the Brillouin phase shift that performs measurements tolerant to non local effects. This technique raises opportunities to increase the distance covered by these sensors ... -
Phasorial DPP-BOTDA sensor tolerant to non-local effects
Urricelqui Polvorinos, Javier ; Mariñelarena Ollacarizqueta, Jon ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
We introduce a modification of the differential pulse width pair technique in a BOTDA sensor based on a phase modulated probe wave and RF demodulation. This provides a differential Brillouin phasorial signal with high ... -
Polarization diversity for Brillouin distributed fiber sensors based on a double orthogonal pump
Urricelqui Polvorinos, Javier ; López Fernandino, Felipe; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a novel Brillouin optical time domain analysis sensor deploying a polarization diversity technique which eliminates the need for polarization scrambling, providing measurements that are largely immune to the ... -
Second-order non-local effects mitigation in BOTDA sensors by tracking the BFS profile
Mompó Roselló, Juan José; Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (SPIE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Simplified Brillouin sensor for structural health monitoring applications based on passive optical filtering
Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Mariñelarena Ollacarizqueta, Jon ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Sources of noise in Brillouin optical time-domain analyzers
Urricelqui Polvorinos, Javier ; Soto, Marcelo A.; Thévenaz, Luc (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
This paper presents a thorough study of the different sources of noise affecting Brillouin optical time-domain analyzers (BOTDA), providing a deep insight into the understanding of the fundamental limitations of this kind ... -
Structural health monitoring of solar trackers using distributed fiber optic sensors
Mariñelarena Ollacarizqueta, Jon ; Mompó Roselló, Juan José ; Zurita Gabasa, Jesús ; Urricelqui Polvorinos, Javier ; Júdez Colorado, Aitor ; López-Amo Sáinz, Manuel ; Jiménez Romero, Sergio; Achaerandio, Álvaro; Loayssa Lara, Alayn (SPIE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Synthesis of virtual Brillouin frequency shift profiles in BOTDA sensors using optical source dithering
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a novel concept for Brillouin optical time domain analysis sensors that is based on synthesizing a virtual Brillouin frequency shift profile along the sensing fiber. The technique is based on modulating the ...
