Browsing by UPNA Author "Loayssa Lara, Alayn"
Now showing items 1-20 of 54
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46-km-long Raman amplified hybrid double-bus network with point and distributed Brillouin sensors
Fernández Vallejo, Montserrat
; Olier Aguado, David; Zornoza Indart, Ander; Pérez Herrera, Rosa Ana 
; Díaz Lucas, Silvia ; Elosúa Aguado, César ; Bariáin Aisa, Cándido ; Loayssa Lara, Alayn ; López-Amo Sáinz, Manuel (IEEE, 2012)
Artículo / Artikulua 
We experimentally demonstrate a 46-km hybrid network that combine point and distributed Brillouin sensors. The proposed sensor network multiplexes low-cost intensity point sensors based on fiber-optic tapers, which are ... -
Application of remote power-by-light switching in a simplified BOTDA sensor network
Bravo Acha, Mikel ; Zornoza Indart, Ander; Loayssa Lara, Alayn ; López-Amo Sáinz, Manuel ; López Higuera, José Miguel; Ullán Nieto, Ángel (MDPI, 2013)
Artículo / Artikulua
We propose and demonstrate the use of spatial multiplexing as a means to reduce the costs of distributed sensing networks. We propose a new scheme in which remote power-by-light switching is deployed to scan multiple ... -
BOTDA measurements tolerant to non-local effects by using a phase-modulated probe wave and RF demodulation
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2013)
Artículo / Artikulua
We demonstrate a Brillouin optical time domain analysis sensor based on a phase modulated probe wave and RF demodulation that provides measurements tolerant to frequency dependent variations of the pump pulse power induced ... -
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 assisted by Brillouin distributed amplification of pump pulses
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2015)
Artículo / Artikulua
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 ... -
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 ... -
Brillouin optical time-domain analysis sensor with pump pulse amplification
Mompó Roselló, Juan José; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (Optical Society of America, 2016)
Artículo / Artikulua
We demonstrate a simple technique to provide conventional Brillouin optical time-domain analysis sensors with mitigation for pump pulse attenuation. The technique is based on operating the sensor in loss configuration so ... -
Brillouin optical time-domain analyzer for extended sensing range using probe dithering and cyclic coding
Iribas Pardo, Haritz ; Loayssa Lara, Alayn ; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (SPIE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
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 ... -
Compensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensors
Mariñelarena Ollacarizqueta, Jon ; Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (Optical Society of America, 2019)
Artículo / Artikulua
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 (2018)
Tesis doctoral / Doktoretza tesia
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 ... -
Contribution to the development of Brillouin optical time-domain analysis sensors
Urricelqui Polvorinos, Javier (2016)
Tesis doctoral / Doktoretza tesia
This thesis dissertation concentrates on solving some of the limitations described by proposing novel techniques. The first technique is based on using a phase-modulated probe wave with self-heteroyne detection and RF ... -
Contribution to the development of distributed fiber optic sensors based on stimulated Brillouin scattering
(2014) Tesis doctoral / Doktoretza tesia
Fiber optic sensors are becoming a disruptive technology in monitoring integrity of structures. Their low loss, electromagnetic immunity, remote sensing possibilities, multiplexing possibilities and light weight are very ... -
Contribution to the development of distributed fiber optic sensors based on the Brillouin and Rayleigh scattering effects
Mompó Roselló, Juan José (2020)
Tesis doctoral / Doktoretza tesia
En esta tesis se presenta diferentes técnicas que contribuyen en la mejora de DOFS basados en dispersión Brillouin y Rayleigh. Todas estas técnicas han sido demostradas experimentalmente mostrando resultados prometedores. ... -
Contributions to the development of Brillouin distributed sensors for structural health monitoring
Mariñelarena Ollacarizqueta, Jon (2019)
Tesis doctoral / Doktoretza tesia
The main objectives of this thesis is to contribute to the enhancement of the performance of distributed optical ber sensors (DOFS) based on stimulated Brillouin scattering (SBS) by analyzing their limitations and proposing ... -
Cost-effective Brillouin optical time-domain analysis sensor using a single optical source and passive optical filtering
Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Mariñelarena Ollacarizqueta, Jon ; Sagüés García, Mikel ; Loayssa Lara, Alayn (Hindawi Publishing Corporation, 2016)
Artículo / Artikulua
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 ; Loayssa Lara, Alayn ; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (Optical Society of America, 2017)
Artículo / Artikulua
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 ; Mariñelarena Ollacarizqueta, Jon ; Schneider, Thomas; Loayssa Lara, Alayn (Optical Society of AmericaIEEE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
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. -
Distributed dynamic strain sensing via perfect periodic coherent codes and a polarization diversity receiver
Mompó Roselló, Juan José; Shiloh, Lihi; Arbel, Nadav; Levanon, Nadav; Loayssa Lara, Alayn ; Eyal, Avishay (IEEE, 2019)
Artículo / Artikulua
Rayleigh scattering-based dynamic strain sensing with high spatial resolution, fast update rate, and high sensitivity is highly desired for applications such as structural health monitoring and shape sensing. A key issue ... -
Dynamic BOTDA measurements based on Brillouin phase-shift and RF demodulation
Urricelqui Polvorinos, Javier ; Zornoza Indart, Ander; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2012)
Artículo / Artikulua
We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase shift in addition to the conventional Brillouin gain. This provides the advantage of measurements ...
