Browsing by UPNA Author "López-Amo Sáinz, Manuel"
Now showing items 1-20 of 136
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250 km ultra long remote sensor system based on a fiber loop mirror interrogated by an OTDR
Bravo Acha, Mikel
; Baptista, José Manuel; Santos, José Luís; López-Amo Sáinz, Manuel ; Frazão, Orlando (Optical Society of America, 2011)
Artículo / Artikulua 
A 253 km ultra long remote displacement sensor system based on a fiber loop mirror interrogated by a commercial OTDR is proposed and experimentally demonstrated. The use of a fiber loop mirror increases the signal to noise ... -
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 ... -
All-fiber lasers through photonic crystal fibers
Rodrigues Pinto, Ana Margarida; López-Amo Sáinz, Manuel (Science Wise Publishing & De Gruyter, 2013)
Artículo / Artikulua
A review on all-fiber lasers based on photonic crystal fibers is presented. Photonic crystal fibers present improved features beyond what conventional optical fibers can offer. Due to their geometric versatility, photonic ... -
All-PM fiber loop mirror interferometer analysis and simultaneous measurement of temperature and mechanical vibration
Leandro González, Daniel ; López-Amo Sáinz, Manuel (IEEE, 2018)
Artículo / Artikulua
In this work, a new all-polarization maintaining (PM) fiber loop mirror interferometer is proposed and validated as temperature and mechanical vibration sensor. The scheme employs the arms of a PM coupler as communication ... -
Aluminum coated fiber optic sensor for enhancing flow rate measurement
Rodríguez Rodríguez, Armando; Urroz Unzueta, José Carlos ; Diéguez Elizondo, Pedro ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; López Rodríguez, José Javier (SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
A water flow and velocity aluminum-coated Fiber Bragg Grating sensor system for open channels was designed, simulated and tested. The sensing head was designed, ruggedized and customized to measure velocities at ... -
Anomalous relative intensity noise transfer in ultralong random fiber lasers
Rota Rodrigo, Sergio; Rizzelli, Giuseppe; Leandro González, Daniel ; Nuño, J.; López-Amo Sáinz, Manuel (Optical Society of America, 2020)
Artículo / Artikulua
We present, for the first time, an experimental demonstration of RIN noise transfer dampening at low frequencies in random distributed feedback ultralong Raman fibre lasers based on conventional telecommunication fibres. ... -
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 ... -
C and L band fiber lasers enhanced by ultrafast laser inscribed artificial backscatter reflectors
Pérez Herrera, Rosa Ana ; Roldán Varona, Pablo; Sánchez-González, Arturo; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel (Optica, 2022)
Artículo / Artikulua
This letter presents an experimental comparison between two linear-cavity erbiumdoped fiber lasers (EDFL) assisted by two different artificial backscatter fiber-based reflectors. Both reflectors were inscribed by femtosecond ... -
Cavidad láser de fibra óptica multibanda basada en reflectores pseudoaleatorios cuasidistribuidos
Sánchez-González, Arturo; Pérez Herrera, Rosa Ana ; Roldán Varona, Pablo; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel (Sociedad Española de Óptica, 2021)
Artículo / Artikulua
En este trabajo se presenta un análisis experimental de las prestaciones alcanzadas por una cavidad láser en línea asistida por un reflector de fibra con retrodispersión controlada artificialmente (RFRCA). Dicho reflector ... -
Compact and highly-efficient polarization independent vertical resonant couplers for active-passive monolithic integration
Galarza Galarza, Marko ; Thourhout, Dries Van; Baets, Roel; López-Amo Sáinz, Manuel (Optical Society of America, 2008)
Artículo / Artikulua
Compact low-loss polarization independent vertical coupling between a 1.55 μm InGaAsP bulk active waveguide and a passive waveguide based on bimodal interference is presented. Simulation results show low coupling loss (<0.1 ... -
Compact optical fiber lasers and optical fiber sensors assisted by femtosecond laser inscription of plane-by-plane FBGs
Roldán Varona, Pablo; Pallarés-Aldeiturriaga, D.; Rodríguez Cobo, Luis; Pérez Herrera, Rosa Ana ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; López Higuera, José Miguel (Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena
Development of a high temperature sensor based on optical fiber l aser generated from a cavity of reduced dimensions (43 mm) in Er-doped fiber. The mirror FBGs have been inscribed with femtosecond laser using the slit beam ... -
Comparative study of ring and random cavities for fiber lasers
Fernández Vallejo, Montserrat; Rota Rodrigo, Sergio ; López-Amo Sáinz, Manuel (Optical Society of America, 2014)
Artículo / Artikulua
An experimental comparison of three fiber laser structures with the same Raman gain medium is presented in order to establish the main pros and cons of each basic scheme. The first fiber laser is based on a hybrid ring–random ... -
Comparison between capacitive and microstructured optical fiber soil moisture sensors
López Aldaba, Aitor; López Torres, Diego ; Campo-Bescós, Miguel ; López Rodríguez, José Javier ; Yerro Lizarazu, David; Elosúa Aguado, César ; Arregui San Martín, Francisco Javier ; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel (MDPI, 2018)
Artículo / Artikulua
Soil moisture content has always been an important parameter to control because it is a deterministic factor for site-specific irrigation, seeding, transplanting, and compaction detection. In this work, a discrete sensor ... -
Comparison between different structures of suspended-core microstructured optical fibers for volatiles sensing
López Torres, Diego ; López Aldaba, Aitor ; Elosúa Aguado, César ; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel ; Arregui San Martín, Francisco Javier (MDPI, 2018)
Artículo / Artikulua
In this paper, different core structures of microstructured optical fibers (MOFs) for low-finesse Fabry-Perot (FP) sensors are experimentally compared to get the highest sensitivity. These devices are designed for volatile ... -
Comparison of wavelength-division-multiplexed distributed fiber Raman amplifier networks for sensors
Díaz Lucas, Silvia ; López-Amo Sáinz, Manuel (Optical Society of America, 2006)
Artículo / Artikulua
A novel distributed fiber Raman amplified star topology used for optical sensor wavelength-division multiplexing is proposed. The performance of this star configuration is compared to an optically amplified bus topology. ... -
Compound lasing fiber optic ring resonators for sensor sensitivity enhancement
Rota Rodrigo, Sergio; González Herráez, Miguel; López-Amo Sáinz, Manuel (IEEE / OSA, 2015)
Artículo / Artikulua
In this work, a new method for increasing simultaneously the sensitivity and interrogation stability of fiberoptic intensity sensors is presented. The configuration is based on a double-coupler ring resonator. On one side, ... -
Concrete beam bending test monitorization using a high strain fiber optic sensor
Bravo Acha, Mikel ; Sáenz, J.; Bravo Navas, M.; López-Amo Sáinz, Manuel (IEEE / OSA, 2012)
Artículo / Artikulua
In this work the development of an 'eight-shape' fiber optic sensor for high strain measurement is experimentally demonstrated. This strain sensor is interrogated using a commercial optical time domain reflectometer through ... -
Contribution to the development of new photonic systems for fiber optic sensing applications
Bravo Acha, Mikel (2015)
Tesis doctoral / Doktoretza tesia
En este trabajo de doctorado se presentan nuevos sistemas y subsistemas de sensores de fibra óptica. Así, se proponen y desarrollan nuevas técnicas, componentes y tecnologías basadas en láseres de fibra con espejos ... -
Contribution to the development of Rayleigh-based fiber optic systems for sensing applications
Miguel Soto, Verónica de (2019)
Tesis doctoral / Doktoretza tesia
La tecnología de los sensores de fibra óptica ha experimentado un gran crecimiento desde sus comienzos en la década de 1970, cuando se contempló su utilización para detectar parámetros tanto físicos como químicos. Además, ... -
Development of a water flow and velocity optical fiber sensor for field testing
Rodríguez Rodríguez, Armando; Urroz Unzueta, José Carlos ; Diéguez Elizondo, Pedro ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; López Rodríguez, José Javier (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
A water flow and velocity fiber optic sensor system was developed and tested. The sensing head was especially developed and ruggedized to measure velocities at different depths, in order to calculate the discharge in channels.
