Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por autor UPNA "Loayssa Lara, Alayn"
Mostrando ítems 1-20 de 44
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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 ... -
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 ... -
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 ... -
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. -
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 ... -
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 ... -
Effects of pump pulse extinction ratio in Brillouin optical time-domain analysis sensors
Iribas Pardo, Haritz ; Mariñelarena Ollacarizqueta, Jon ; Feng, Cheng; Urricelqui Polvorinos, Javier ; Schneider, Thomas; Loayssa Lara, Alayn (Optical Society of America, 2017)
Artículo / Artikulua
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 ; Sagüés García, Mikel ; Mariñelarena Ollacarizqueta, Jon ; Loayssa Lara, Alayn (Udako Euskal Unibertsitatea, 2015)
Contribución a congreso / Biltzarrerako ekarpena
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 ; 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 ... -
Enhancement of signal-to-noise ratio in Brillouin optical time domain analyzers by dual-probe detection
Iribas Pardo, Haritz ; Loayssa Lara, Alayn ; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (SPIE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
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 ...
