Profile (CV) of the research teaching staff

Vallés Brau, Juan Antonio
Department: Departamento de Física Aplicada
Field: Optica
Faculty: Facultad de Ciencias

Research Institute: INSTITUTO DE INVESTIGACIÓN EN INGENIERÍA DE ARAGÓN (I3A)
Group: E44_23R: Tecnología Óptica Láser
Academic position: Cated. Universidad

Academic position
  • Coordinador de Grado en Física
  • Vicedecano de Internacionalización y Programas de Movilidad
Office phone: 842444
Email: juanval@unizar.es


 
         

Journal articles

  • Sanz-Felipe, Ángel; Ariza, Rocío; Benedicto, David; Macias-Montero, Manuel; Vallés, Juan A.; Solís, Javier. Modeling optical amplification in Er/Yb-codoped integrated Bragg gratings. CERAMICS INTERNATIONAL. 2023. DOI: 10.1016/j.ceramint.2023.06.206

  • Benedicto, David; Martín, Juan C.; Dias-Ponte, Antonio; Solis, Javier; Vallés, Juan A. An integrated pump-controlled variable coupler fabricated by ultrafast laser writing. MICROMACHINES. 2023. DOI: 10.3390/mi14071370

  • Benedicto, David; Collados, María Victoria; Martín, Juan C.; Atencia, Jesús; Mendoza-Yero, Omel; Vallés, Juan A. Contribution to the Improvement of the Correlation Filter Method for Modal Analysis with a Spatial Light Modulator. MICROMACHINES. 2022. DOI: 10.3390/mi13112004

  • Pons, Carolina; Galindo, Josué M.; Martín, Juan Carlos; Torres-Moya, Iván; Merino, Sonia; Herrero, María Antonia; Vázquez, Ester; Prieto, Pilar; Vallés, Juan Antonio. Guiding losses estimation in hydrogel-based waveguides. JOURNAL OF PHYSICS: CONFERENCE SERIES. 2022. DOI: 10.1088/1742-6596/2407/1/012032

  • Benedicto, David; Collados, M. Victoria; Martín, Juan C.; Atencia, Jesús; Vallés, Juan A. Coupled two-core integrated waveguides modal analysis. JOURNAL OF PHYSICS: CONFERENCE SERIES. 2022. DOI: 10.1088/1742-6596/2407/1/012016

  • Pons, Carolina; Galindo, Josué M.; Martín, Juan C.; Torres-Moya, Iván; Merino, Sonia; Herrero, M. Antonia; Vázquez, Ester; Prieto, Pilar; Vallés, Juan A. Propagation Losses Estimation in a Cationic-Network-Based Hydrogel Waveguide. MICROMACHINES. 2022. DOI: 10.3390/mi13122253

  • Benedicto, David; Valles, Juan A.; Martin, Juan C. Characterization of asymmetrically Fed Er3+/Yb3+ Co-Doped double core integrated waveguides. JOURNAL OF LIGHTWAVE TECHNOLOGY. 2022. DOI: 10.1109/JLT.2022.3185904

  • Benedicto D.; Dias A.; Martin J.; Valles J.-A.; Solis J. Characterization of Multicore Integrated Active Waveguides Written in an Er3+/Yb3+Codoped Phosphate Glass. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA. 2021. DOI: 10.1109/JLT.2021.3082620

  • Pérez-Gracia, J.; Ávila, F.J.; Ares, J.; Vallés, J.A.; Remón, L. Misalignment and tilt effect on aspheric intraocular lens designs after a corneal refractive surgery. PLOS ONE. 2020. DOI: 10.1371/journal.pone.0243740

  • Galatu¿, R.; Faragó, P.; Miluski, P.; Valles, J.A. Distributed fluorescent optical fiber proximity sensor: Towards a proof of concept. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY. 2018. DOI: 10.1016/j.saa.2018.02.044

  • Valles, J.A.; Martin, J.C.; Berdejo, V.; Cases, R.; Alvarez, J.M.; Rebolledo, M.A. Assessment of effect of Yb3+ ion pairs on a highly Yb-doped double-clad fibre laser. LASER PHYSICS. 2018. DOI: 10.1088/1555-6611/aa9ebc

  • Farago, P.; Galatus, R.; Hintea, S.; Martin, J.C.; Valles, J. Fluorescent fiber implementation of a high-resolution distributed position sensor. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2018. DOI: 10.1117/12.2307494

  • Vallés, J.A.; Benedicto, D. Optimized active multicore fiber bending sensor. OPTICAL MATERIALS. 2018. DOI: 10.1016/j.optmat.2018.06.002

  • Benedicto, D.; Vallès, J.A. Ring-type erbium-doped antiresonant reflecting optical waveguide amplifier analysis and design. IEEE PHOTONICS TECHNOLOGY LETTERS. 2018. DOI: 10.1109/LPT.2018.2876571

  • Benedicto, D.; Vallés, J.A. Modeling multicore integrated waveguides in highly doped glass. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2017. DOI: 10.1117/12.2271843

  • del Hoyo, J.; Moreno-Zarate, P.; Escalante, G.; Valles, J.A.; Fernandez, P.; Solis, J. High-Efficiency Waveguide Optical Amplifiers and Lasers via FS-Laser Induced Local Modification of the Glass Composition. JOURNAL OF LIGHTWAVE TECHNOLOGY. 2017. DOI: 10.1109/JLT.2017.2705422

  • Galatus, R.; Valles, J. Optimized Design of High-Order Series Coupler Yb3+/Er3+-Codoped Phosphate Glass Microring Resonator Filters. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2016. DOI: 10.1117/12.2227382

  • Vallés, Ja; Berdejo, V; Martín Alonso, J; Cases, R; Älvarez, Jm; Rebolledo, Ma. Detailed characterization of a highly Yb-doped double-clad fiber. LASER PHYSICS. 2016. DOI: 10.1088/1054-660X/26/12/125105

  • Vallés, J. A. La belleza de lo inhomogéneo . OPTICA PURA Y APLICADA. 2015. DOI: 10.7149/OPA.48.2.167

  • Vallés,J. A.; G¿l¿tus,R. Modeling of Yb3+/Er3+-codoped microring resonators. OPTICAL MATERIALS. 2015. DOI: 10.1016/j.optmat.2014.10.028

  • Fernandez, T. T.;Sotillo, B.;del Hoyo, J.;Vallés, J. -A;Vázquez, R. M.;Fernandez, P.;Solis, J. Dual regimes of ion migration in high repetition rate femtosecond laser inscribed waveguides. IEEE PHOTONICS TECHNOLOGY LETTERS. 2015. DOI: 10.1109/LPT.2015.2407378

  • Martín, J. C.; Vallés, J. A.; Berdejo, V.; Rebolledo, M. A.; Díez, A.; Sánchez-Martín, J. A.; Andrés, M. V. Study of upconversion in highly Er-doped photonic crystal fibers through laser-transient dynamics. LASER PHYSICS. 2014. DOI: 10.1088/1054-660X/24/10/105112

  • Valles,J. A. Concentration-dependent optimization of Yb3+/Er3+ highly-doped phosphate glass waveguide amplifiers and lasers using a microscopic statistical formalism. OPTICAL MATERIALS. 2013. DOI: 10.1016/j.optmat.2012.09.017

  • Vallés, J. A.; Galatus,R. Highly Yb3+/Er3+-codoped waveguide microring resonator optimized performance. IEEE PHOTONICS TECHNOLOGY LETTERS. 2013. DOI: 10.1109/LPT.2013.2241045

  • Martín,J. C.; Berdejo,V.; Vallés,J. A.; Sánchez-Martín,J. A.; Díez,A.; Andrés,M. V. Study of the use of methanol-filled Er-doped suspended-core fibres in a temperature-sensing ring laser system. LASER PHYSICS. 2013. DOI: 10.1088/1054-660X/23/10/105107

  • Vallés, J. A.; Berdejo, V.; Rebolledo, M.A.; Díez, A.; Sánchez-Martín, J. A.; Andrés, M. V. Dynamic characterization of upconversion in highly Er-doped silica photonic crystal fibers. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2012. DOI: 10.1109/JQE.2012.2199962

  • Sánchez-Martín,J. A.;Álvarez,J. M.;Rebolledo,M. A.;Andrés,M. V.;Vallés,J. A.;Martín,J. C.;Berdejo,V.;Díez,A. A simple theoretical model for erbium doped PCF ring lasers design. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2011. DOI: 10.1117/12.901878

  • Berdejo,V.;Vallés,J. A.;Rebolledo,M. A.;Diez,A.;Martin,J. C.;Sanchez-Martin,J.;Álvarez,J. M.;Andrés,M. V. Study of upconversion in PCFs with high erbium concentration. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2011. DOI: 10.1117/12.902699

  • Zhang,D. -L;Qi,L.;Hua,P. -R;Vallés,J. -A;Wang,Y. -F;Chen,B.;Yu,D. -Y;Pun,E. Y. -B. Excitation direction effect on polarization property of Er3+ electronic transition in LiNbO3 waveguide and bulk material. IEEE PHOTONICS TECHNOLOGY LETTERS. 2011. DOI: 10.1109/LPT.2011.2157965

  • Zhang,D. -L;Qi,L.;Hua,P. -R;Yu,D. -Y;Vallés,J. -A;Yue-Bun Pun,E. Emission and absorption cross section spectra of Er3+ in LiNbO3 crystals codoped with indium. JOURNAL OF MATERIALS RESEARCH. 2011. DOI: 10.1557/jmr.2011.53

  • Vallés,J. A. Method for accurate gain calculation of a highly Yb3+/Er 3+-codoped waveguide amplifier in migration-assisted upconversion regime. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2011. DOI: 10.1109/JQE.2011.2159961

  • Martín,J. C.; Used,J.; Sánchez-Martín,J. A.; Berdejo,V.; Vallés,J. A.; Álvarez,J. M.; Rebolledo,M. A. Erbium-doped photonic crystal fiber chaotic laser. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2011. DOI: 10.1117/12.901916

  • Vallés, Juan Antonio.; Ferrer, Andrés; Fernández Navarro, José María ; Berdejo, Víctor; Ruiz de la Cruz, Alejandro; Ortega-Feliú, Ines ; Rebolledo, Miguel Ángel; Solís Céspedes, Javier Performance of ultrafast laser written active waveguides by rigorous modeling of optical gain measurements. OPTICAL MATERIALS EXPRESS. 2011. DOI: 10.1364/OME.1.000564

  • Ferrer, A.; Ruiz de la Cruz, A.; Puerto, D.; Gawelda, W.; Vallés, J. A.; Rebolledo, M. A.; Berdejo, V.; Siegel, J.; Solis, J. In situ assessment and minimization of nonlinear propagation effects for femtosecond-laser waveguide writing in dielectrics. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS. 2010. DOI: 10.1364/JOSAB.27.001688

  • Sánchez-Martín, J. A.;Rebolledo, M. A.;Alvarez, J. M.;Valles, J. A.;Díez, A. ;Andres, M. V. Erbium-doped-silica photonic crystal fiber characterization method: Description and experimental check. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2010

  • Valles, J. A.;Ferrer, A.;Sánchez-Martín, J. A.;Cruz, de L.;Rebolledo, M. A. ;Solis, J. New characterization technique for femtosecond laser written waveguides in Yb/Er-codoped glass. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2010

  • Vallés, J. A.; Rebolledo, M. A.; Berdejo, V.; Ferrer, A.; Ruiz de la Cruz, A.; Solís, J. Study of an optimised bidirectional pump scheme for fs-laser written Yb/Er-codoped integrated waveguides. OPTICAL MATERIALS. 2010. DOI: 10.1016/j.optmat.2010.10.001

  • Valles, Juan A.;Solis, Javier;Sanchez-Martin, Jose A.;Ruiz de la Cruz, Alexandro;Rebolledo, Miguel A. ;Ferrer, Andres. Assessment of Rayleigh and non-Rayleigh Contributions to the Transmission Losses in fs-Laser Written Er/Yb-Codoped Phosphate Glass Waveguides. JOURNAL OF LASER MICRO NANOENGINEERING. 2010

  • Zhang, D. -.;Gao, J.;Vallés, J. -.;Xu, C.;Sun, L.;Xu, Y. -. ;Pun, E. Y. -. Emission and absorption cross-sections of Mg/Er-codoped near-stoichiometric LiNbO3crystals. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2010

  • Valles, J. A.;Rebolledo,M. A.;Used,J. Energy-Transfer Efficiency in Er/Yb-Codoped Phosphate Waveguides in Dynamic Regime. OPTICAL MATERIALS. 2009

  • Valles, J. A.;Rebolledo,M. A.;Cortes,J.;Used,J. Energy-Transfer Efficiency in the Er/Yb-Codoped Waveguide Ring Laser Under Sinusoidally Modulated Pump. OPTICS EXPRESS. 2007

  • Orera, V. M.;Larrea, A.;Merino, R. I.;Rebolledo, M. A.;Valles, J. A.;Gotor, R.;Peña, J. I. Novel Photonic Materials Made From Ionic Eutectic Compounds. ACTA PHYSICA SLOVACA. 2005

  • Rebolledo, M. A.;Alvarez, J. M.;Valles, J. A.;Martin, J. C.;Jarabo, S.;Sola, I. J.;Lazaro, J. A.;Escuer, A. Characterization and Modeling of Erbium-Doped Fibers and Integrated Waveguides. FIBER AND INTEGRATED OPTICS. 2004

  • Valles, Juan A.;Lazaro, Jose A.;Rebolledo, Miguel Angel. Analysis of competing mechanisms in transitions between excited states in Er-doped integrated waveguides. IEEE JOURNAL OF QUANTUM ELECTRONICS. 2002

  • Rebolledo, Miguel Angel;Valles, Juan Antonio;Setien, Sergio. In situ measurement of polarization-resolved emission and absorption cross sections of Er-doped Ti:LiNbO3 waveguides. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS. 2002

  • Lazaro, J. A.;Valles, J. A.;Rebolledo, M. A. In situ measurement of absorption and emission cross sections in Er3+-doped waveguides for transitions involving thermalized states. IEEE JOURNAL OF QUANTUM ELECTRONICS. 1999

  • Karasek, M.;Hotoleanu, M.;Voiculescu, E.;Valles, J. A. Gain stabilization in all-optical gain-clamped cascade of praseodymium-doped fluoride fiber amplifiers. FIBER AND INTEGRATED OPTICS. 1999

  • Valles, J. A.;Alvarez, J. M. Triple-resonance method for the detection of hyperfine transitions in heavy-alkali metals. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 1998

  • Karasek, M.;Valles, J. A. Analysis of channel addition. JOURNAL OF LIGHTWAVE TECHNOLOGY. 1998

  • Valles, J. A.;Lazaro, J. A.;Hotoleanu, M.;Karasek, M.;Voiculescu, E. Analysis of gain and noise performance of bidirectionally pumped Pr3+-doped fluoride fibre amplifier configurations with unbalanced pumping. JOURNAL OF MODERN OPTICS. 1998

  • Lazaro, J. A.;Valles, J. A.;Rebolledo, M. A. Determination of emission and absorption cross sections of Er3+ in Ti : LiNbO3 waveguides from transversal fluorescence spectra. PURE AND APPLIED OPTICS. 1998

  • Orera, V. M.;Peña, J. I.;Merino, R. I.;Lazaro, J. A.;Valles, J. A.;Rebolledo, M. A. Prospects of new planar optical waveguides based on eutectic microcomposites of insulating crystals: The ZrO2(c)-CaZrO3 erbium doped system. APPLIED PHYSICS LETTERS. 1997

  • Valles, J. A.;Hotoleanu, M.;Babota, R.;Voiculescu, E. Modelling of the temporal response of Pr3+-doped fluoride fibre amplifiers. PURE AND APPLIED OPTICS. 1997

  • Valles, J. A.;Lazaro, J. A.;Rebolledo, M. A. Modeling of integrated erbium-doped waveguide amplifiers with overlapping factors methods. IEEE JOURNAL OF QUANTUM ELECTRONICS. 1996

  • Valles, J. A.;Alvarez, J. M. Relaxation and generation of hyperfine coherences in an optically pumped heavy-alkali-metal vapor undergoing double-resonance excitation. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS. 1996

  • Garces, I.;Villuendas, F.;Valles, J. A.;Dominguez, C.;Moreno, M. Analysis of leakage properties and guiding conditions of rib antiresonant reflecting optical waveguides. JOURNAL OF LIGHTWAVE TECHNOLOGY. 1996

  • Valles, J. A.;Alvarez, J. M. Relaxation, Generation, and Detection of Zeeman Coherences in an Optically Pumped Heavy-Alkali-Metal Vapor. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS. 1994

  • Valles, J. A.;Tornos, J. A Precise Measurement of the Cesium Spin-Exchange Relaxation Cross-Section. APPLIED SPECTROSCOPY. 1990

Conference presentations

  • Galatus, R.; Farago, P.; Valles, J. Optical Data Transmission with Plastic Scintillating Fibers. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2018. DOI: 10.1117/12.2306677

  • Hoyo, J.; Moreno-Zárate, P.; Escalante, G.; Vallés, J.A.; Fernández, P.; Solis, J. High efficiency waveguide-based optical amplifiers and lasers fabricated by femtosecond-laser induced ion migration. OPTICS INFOBASE CONFERENCE PAPERS SERIES. 2017. DOI: 10.1109/CLEOE-EQEC.2017.8086974

  • Vallés, J.A.; Galatus, R. Requirements for gain/oscillation in Yb3+/Er3+-codoped microring resonators. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 2015. DOI: 10.1117/12.2078657

Books

  • Fibras de cristal fotonico y guias integradas escritas con laser. Berdejo Arceiz, Víctor; Valles Brau, Juan Antonio; Rebolledo Sanz, Miguel Angel. 2014

Scientific chapters

  • Ares García, J. [et al.]. I Jornada de Optometría Clínica. INNOVACIÓN DOCENTE Y APRENDIZAJE: EXPERIENCIAS Y RETOS. 2018

  • María Victoria Collados Collados, Jorge Ares García y Juan Antonio Vallés Brau. Uso de cuestionarios en Moodle previos a la realización de prácticas de laboratorio. BUENAS PRÁCTICAS EN LA DOCENCIA UNIVERSITARIA CON APOYO DE TIC: EXPERIENCIAS EN 2012. 2013

  • Juan A. Vallés. Dispositivos de guía de onda activos fabricados mediante escritura con láser de femtosegundo. ALGUNAS CUESTIONES DE CIENCIA: LIBRO HOMENAJE AL PROFESOR MANUEL QUINTANILLA. 2007



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