Universidade de Vigo
Grupo de Antenas y Radar

Grupo de Antenas, Radar y Comunicaciones Ópticas

Somos un grupo de investigación líder en el área de electromagnetismo. Nuestras líneas de investigación incluyen diseño y medida de antenas, electromagnetismo computacional, EMC, radar, aplicaciones de ondas milimétricas, electro-óptica y tecnología cuántica de la información.

F. Javier Fraile-Peláez

Catedrático de Universidad
Escuela Técnica Superior de Enxeñeiros de Telecomunicación
F. Javier Fraile-Peláez
E-mail fj_fraile@com.uvigo.es
Teléfono 986 81 2139
Despacho A-402
Web http://www.com.uvigo.es/fot/jfraile


F. Javier Fraile Peláez es ingeniero de telecomunicación (1985) y doctor ingeniero de telecomunicación (1990) por la Universidad Politécnica de Madrid. Ingresó como profesor en la Universidad de Santiago de Compostela en 1989, y actualmente es catedrático del área de Teoría de la Señal y Comunicaciones en la Universidad de Vigo. Sus áreas de investigación incluyen los dispositivos optoelectrónicos, comunicaciones ópticas, óptica no lineal, y óptica cuántica.


  • Dispositivos optoelectrónicos
  • Comunicaciones ópticas
  • Óptica no lineal
  • Óptica cuántica


  • Comunicaciones ópticas


Publicaciones Revistas

  • 1. F. J. Fraile-Peláez and G. Assanto: "Coupled-Mode Equations for Nonlinear Directional Couplers". Applied Optics. Vol. 29, p. 2216-2217 (1990).
  • 2. F. J. Fraile-Peláez, G. Assanto and D.R. Heatly: "Sign-Dependent Response of Nonlinear Directional Couplers". Optics Communications. Vol. 77, p. 402-406 (1990).
  • 3. F. J. Fraile-Peláez and G. Assanto: "Improved Coupled-Mode Analysis of  Nonlinear Distributed Feedback Structures". Optical and Quantum Electronics. Vol. 23, p. 633-637 (1991).
  • 4. F.J. Fraile-Peláez, J. Capmany, and M.A. Muriel: "Transmission Bistability in a Double Coupler Fiber Ring Resonator". Optics Letters. Vol. 16, p. 907-909 (1991).
  • 5. J. Capmany, M.A. Muriel, and F.J. Fraile-Peláez: "Optical Differential Amplification in Nonlinear Fibre Ring Resonator". Electronics Letters. Vol. 27, p. 1810-1811 (1991).
  • 6. F.J. Fraile-Peláez and J. Capmany: "Effect of Pulse Propagation on the Modal Field Profiles of Dielectric and Metallic Waveguides". Microwave and Optical Technology Letters. Vol. 4, p. 589-591 (1991).
  • 7. F.J. Fraile-Peláez: "An Intuitive Way to Teach the Electromagnetic Interaction in Anisotropic Dielectrics". IEEE Trans. on Education. Vol. 35, p. 296-299 (1992).
  • 8. F.J. Fraile-Peláez and F. Gil-Vázquez: "Combined Effect of Harmonic Distortion and Pulse Dispersion in Optical Fiber Transmission". Microwave and Optical Technology Letters. Vol. 6, p. 205-208 (1993).
  • 9. F.J. Fraile-Peláez, J. Capmany, and M. A. Muriel: "Low Threshold Optical Amplification Using a Nonlinear Ring Resonator". Electronics Letters. Vol. 29, p. 1249-1251 (1993).
  • 10. F.J. Fraile-Peláez, M. Prol, D.J. Santos, and J.M. Soto-Crespo: "Transient Analysis of a Nonlinear Fiber Ring Resonator". Applied Physics Letters. Vol. 63, p. 1477-1479 (1993).
  • 11. J. Capmany, F.J. Fraile-Peláez and M. A. Muriel: "Optical Bistability and Differential Amplification in Nonlinear Fiber Resonators". IEEE J. Quantum Electronics. Vol. 30, p. 2578-2588 (1994).
  • 12. P. Chamorro-Posada, R. Gomez-Alcala, and F. J. Fraile-Pelaez: "Modal Analysis of Optical Waveguides using Prony's Method and BPM". Microwave and Optical Technology Letters. Vol. 7, p. 529-532 (1994).
  • 13. P. Chamorro-Posada and F. J. Fraile-Pelaez: "Integrated Waveguide-Photodetector Coupling by Modal Fitting". Microwave and Optical Technology Letters. Vol. 7, p. 795-798 (1994).
  • 14. P. Chamorro-Posada, and F. J. Fraile-Pelaez: "Volume Integral Formulation of FD-BPM for Studying Planar Optical Waveguides". Journal of Modern Optics. Vol. 42, p. 491-496 (1995).
  • 15. M. Prol, F.J. Fraile-Peláez, R. Gómez-Alcalá, P. Chamorro, and D.J. Santos: "Instability and Chaos in a Two-Coupler Fiber Ring Resonator". Fiber & Integrated Optics. Vol 14, p. 331-335 (1995).
  • 16. D.J. Santos, R. Gómez-Alcalá, F.J. Fraile-Peláez, and M. Prol: "Quantum Noise Analysis of an Amplifying TCRR Using a Continuous Mode Formalism". Fiber & Integrated Optics. Vol 14, p. 287-294 (1995).
  • 17. R. Gómez-Alcalá, C. Mejuto, F.J. Fraile-Peláez, and I. Esquivias: "Valence Bandstructure of Disordered Quantum Wells". Superlattices and Microstructures. Vol 17, p. 277-284 (1995).
  • 18. R. Gómez-Alcalá, F.J. Fraile-Peláez, A. Espiñeira, and X. Piñeiro: "Effective-Mass Approaches for One-Dimensional Quantum Well Structures. Comparison with Multiband Results". Superlattices and Microstructures. Vol 20, No. 1, 35-44 (1996).
  • 19. D. J. Santos, A. Seoane, and F.J. Fraile-Peláez: "Transient Analysis of a Nonlinear Ring Resonator Operating as an Optical Oscillator". Microwave and Optical Technology Letters. Vol 13, 102-105, (1996).
  • 20. D. J. Santos, R. Loudon, and F.J. Fraile-Peláez: "Continuum States and Fields in Quantum Optics". American Journal of Physics. Vol. 65, 126-132, (1997).
  • 21. F.J. Fraile-Peláez, D. Santos, and J. Capmany: "Photonic Excess Noise in a p-i-n Photodetector". Optics Communications. Vol. 135, 37-40 (1997).
  • 22. F.J. Fraile-Peláez and P. Chamorro-Posada: "Conceptual Difficulties in the Teaching of the Photodetection Process". Int. J. Electrical Education, Vol. 35, no. 4 (1998).
  • 23. David J. Santos and F.J. Fraile-Peláez: "Bit Rate Influence on Shot Noise in Digital Optical Receivers". Microwave and Optical Technology Letters, Vol. 18, 349-350 (1998)
  • 24. P. Chamorro-Posada, G. S. McDonald, G.H.C. New, and F. J. Fraile-Peláez: "Fast Algorithm for Studying the Evolution of Optical Solitons under Perturbations". IEEE Trans. on Magnetics, vol. 35, 1558-1561 (1999)
  • 25. David J. Santos and F.J. Fraile-Peláez: "Pulse Normalization in Optical Receiver Shot-Noise Performance". IEE Proc. Optoelectronics, vol. 146, 201-203 (1999).
  • 26. P. Chamorro-Posada, F.J. Fraile-Peláez, R. Gómez-Alcalá, and D. Pastor: "Performance Analysis of Optical Prefiltering-SCM Systems by Accurate Spectral Techniques". IEEE Photonics Tech. Lett., vol. 12, 85-87 (2000).
  • 27. F.J. Fraile-Peláez: "Treatments of Quantum Electromagnetic Interaction: Pedagogical and Conceptual Problems". European Journal of Physics, vol. 22, 287-303 (2001).
  • 28. M. Prol, A. Moredo-Araújo, F.J. Fraile-Peláez, and R. Gómez-Alcalá: "Accurate Validation of Experimental Results of Interdiffused InGaAs/GaAs Strained Quantum Wells by Suitable Numerical Methods". Superlattices and Microstructures, vol. 30, 61-67 (2001).
  • 29. F. J. Fraile-Peláez: "Analytical Signal Formalism in the Description of Optical Pulse Photodetection." Microwave and Optical Technology Letters, vol. 37, no. 5, 347-352 (2003).
  • 30. R. Gómez, A. Dengra, and F. J. Fraile-Peláez: "Analysis of a Fiber Laser with Two Nonlinear Amplifying-Loop Mirrors." Fiber and Integrated Optics, vol. 23, no. 2-3, 201-206 (2004).
  • 31. F. J. Fraile-Peláez, A. Librán, and. M. A. Prol: "Spatial effects in the linear propagation of drastically ultrashort optical pulses in single-mode waveguides." Optical & Quantum Electronics, vol. 37, 611-624 (2005).
  • 32. F. J. Fraile-Peláez and P. Chamorro-Posada: "Active control and stability in microring resonator chains". Optics Express, vol. 15, 6, pp. 3177-3189 (2007).
  • 33. P. Chamorro-Posada and F.J. Fraile-Pelaez: "Superluminal propagation in resonant dissipative media". Optics Communications 282, pp.1095-1098 (2009).
  • 34. P. Chamorro-Posada and F. J. Fraile-Pelaez: "Fast and slow light in zig-zag microring resonator chains". Optics Letters 34, 1095-1098 (2009).
  • 35. P. Chamorro-Posada, F. J. Fraile-Pelaez, and F. J. Diaz-Otero: "Micro-Ring Chains with High-Order Resonances". J. Lightwave Technol. Vol. 29, nº 10, pp. 1514-1521 (2011).
  • 36. P.Chamorro-Posada, J.Sánchez-Curto, J.C.García-Escartín, F.J.Díaz-Otero, P.Martín-Ramos, J.Martín-Gil, L.M.Navas-Gracia, F.J.Fraile-Peláez, G.S.McDonald, J.M.Christian, “Research on nonlinear and quantum optics at the Photonics and Quantum Information Group of the University of Valladolid”, Óptica Pura y Aplicada, Vol. 44, N 2, 211-217, 2011. ISSN: 0030-3917 (2011).
  • 37. R. Gómez-Alcala, F. J. Fraile-Peláez, F. J. Díaz-Otero, “Modeling of Racetrack-Resonator ADD-DROP Filters with Arbitrary Nonlinear Directional Couplers”, Optics Letters, ISSN: 0146-9592, Vol 37, N11, pp. 2097-2099 (2012). DOI: http://dx.doi.org/10.1364/OL.37.002097
  • 38. F. J. Fraile-Peláez, P. Chamorro-Posada, and R. Gómez-Alcalá, "Racetrack Add-Drop Resonator with an Organic Cover for Nonlinear Switching Enhancement", J. Nonlinear Optic. Phys. Mat. 21, 1250030 (2012) [9 pages] DOI: 10.1142/S0218863512500300.
  • 39. P. Chamorro-Posada, R. Gómez-Alcalá, and F. J. Fraile-Peláez, "Study of Optimal All-Pass Microring Resonator Delay Lines With a Genetic Algorithm," Journal of Lightwave Technology  32, nº 8, pp. 1477-1481, ISSN: 0733-8724 (2014)
  • 40. P. Chamorro-Posada and F. J. Fraile-Peláez, "Phase Asymmetry Effect in Longitudinal Offset Coupled Resonator Optical Waveguides," IEEE Photonics Technology Letters, vol. 26, nº 15 , pp. 1489-1491 ISSN: 1041-1135 (2014)
  • 41. Pedro Chamorro-Posada, F. Javier Fraile-Peláez, “Group Delay Control in Longitudinal Offset Coupled Resonator Optical Waveguides”, Journal of Lightwave Technology, Vol. 33, Issue 9, pp. 1703-1707 (2015)
  • 42. F. Javier Fraile-Pelae, “Can an “impulse response” really be defined for a photoreceiver?”, Optics Communications 354, pp. 197–201 (2015)
  • 43. José Vázquez-Cabo, Pedro Chamorro-Posada, F. Javier Fraile-Peláez, Óscar Rubiños-López, José M. López-Santos, Pablo Martín-Ramos, "Windowing of THz time-domain spectroscopy signals: A study based on lactose", Optics Communications, Vol 366, pp. 386-396. 01/05/2016.
  • 44. Andrés Macho, Carlos García Meca, F. Javier Fraile Peláez, Maria Morant, Roberto Llorente, “Birefringence effects in multi-core fiber: coupled local-mode theory”, Optics Express, Vol. 24, nº 19, pp. 21415-21434, 19/09/16. http://dx.doi.org/10.1364/OE.24.021415. ISSN 1094-4087
  • 45. David Doménech, Pedro Chamorro Posada, Francisco J. Fraile Peláez, María José Erro, Santiago Tainta Ausejo, Miguel A. Muriel, Rocío Baños, Jens Bolten, Herbert Kleinjans, "Characterization of Microring Filters for Differential Group Delay Applications", Journal Of Lightwave Technology, Vol. 35, Nº. 14, pp. 2943-2947, ISSN 0733-8724, Digital Object Indentifier: 10.1109/JLT.2017.2707478, July 15, 2017.
  • 46. Javier Madrigal, F. Javier Fraile-Peláez, Di Zheng, David Barrera, and Salvador Sales"Characterization of a FBG sensor interrogation system based on a mode-locked laser scheme", Optics Express, Volumen 25, pp. 24650-24657, 2017. ISSN 1094-4087.
  • 47. Daniel Perez, Ivana Gasulla, F. Javier Fraile-Pelaez, Lee Crudgington, David J. Thomson, Ali Z. Khokhar, Ke Li, Wei Cao, Goran Z. Mashanovich, Jose Capmany, "Silicon photonics rectangular universal interferometer", Laser & Photonics Reviews, Vol. 11, 1700219 (2017). DOI: https://doi.org/10.1002/lpor.201700219
  • 48. Andrés Macho, Carlos García-Meca, Javier Fraile-Pelaez, Frederic Cortés-Juan, Roberto Llorente: "Ultra-short pulse propagation model for multi-core fibers based on local modes". Scientific Reports. Vol. 7 (2017). DOI: 10.1038/s41598-017-16691-w.


  • 1. J. Capmany, F. J. Fraile Peláez y J. Martí: "Fundamentos de Comunicaciones Ópticas" (1ª. y 2ª. Ediciones) . Editorial Síntesis, Madrid (1998). ISBN: 84-7738-599-8
  • 2. J. Capmany, F. J. Fraile Peláez y J. Martí: "Dispositivos de Comunicaciones Ópticas". Editorial Síntesis, Madrid (1999). ISBN: 84-7738-634-X

Congresos Internacionales y Nacionales

  • 1. J. Alcázar-Fernández and F.J. Fraile-Peláez, "A Lattice Algorithm for Lp Deconvolution", ICASSP (International Conference on Acoustics, Speech and Signal Processing), New York, 1988
  • 2. J. Alcázar-Fernández and F.J. Fraile-Peláez, "Linear Prediction with Lp Norm Minimization", EUSIPCO (European Signal Processing Conference), Grenoble, 1988
  • 3. F.J. Fraile Peláez y M.A. Muriel Fernández, "Efecto de las Magnitudes Relativas de los Coeficientes de Acoplamiento en Dispositivos Direccionales no Lineales Kerr y Difusivos", URSI, Vigo, 1990
  • 4. R. Gómez Alcalá, A. Alonso, F.J. Fraile-Peláez, D.J. Santos, E.J. Abril, M. López Coronado y M. Aguilar, "Diseño de una Guiaonda y un Fotodetector Integrados para su Fabricación Mediante Epitaxia en Fase Vapor con Precursores Organometálicos", URSI, Cáceres, 1991
  • 5. J. Capmany, F.J. Fraile Peláez y M.A. Muriel, "Estudio de la Biestabilidad en resonadores de Fibra Óptica", URSI, Cáceres, 1991
  • 6. J. Capmany y F.J. Fraile Peláez, "Conversión del Ruido de Fase en Ruido de Intensidad en una Fibra Óptica", URSI, Torremolinos, 1992
  • 7. D.J. Santos Mejía, F.J. Fraile Peláez, P. Chamorro Posada y J. Capmany, "Análisis No Estacionario de una Estructura Resonante de Fibra Óptica", URSI, Torremolinos, 1992
  • 8. M.A. Muriel, F.J. Fraile Peláez and J. Capmany, "Low Threshold Optical Bistability and Differential Amplification Using a Fiber Amplifier in a Nonlinear Ring Resonator", Topical Meeting on Nonlinear Optics of the Optical Society of America (OSA), Lahaina (USA), 1992
  • 9. J. Capmany y F.J. Fraile Peláez, "Conversión del Ruido de Fase en Ruido de Intensidad en una Fibra Óptica", URSI, Valencia, 1993
  • 10. M. Prol, R. Gómez Alcalá, P. Chamorro, F.J. Fraile-Peláez, "Análisis no estacionario de un resonador no lineal de fibra óptica", URSI, Valencia, 1993
  • 11. P. Chamorro Posada, R. Gómez Alcalá y F. J. Fraile-Peláez, "Efectos de la longitud de un fotodetector-guiaonda con adaptación vertical de impedancias sobre la eficiencia del dispositivo", URSI, Las Palmas de Gran Canaria, 1994
  • 12. P. Chamorro Posada, R. Gómez Alcalá y F. J. Fraile-Peláez, "Análisis No estacionario de Estructuras de Semiconductor", URSI, Valladolid, 1995
  • 13. D. Santos, R. Loudon, and F. J. Fraile-Peláez, "On the Relation Between Continuous-Mode Quantization Scheme and a 'Continuum' of Harmonic Oscillators", Workshop EC Network Non-Classical Light, Corvara, Italia, 1995
  • 14. P. Chamorro Posada, F. J. Fraile-Pelaéz, and R. Gómez Alcalá, "Application of BPM and Prony's Method to the Analysis of Waveguide/Photodetector Structures", 13th. Colloquium Hertzian Optics and Dielectrics . (A.M.P.E.R.E. Group and U.R.S.I.), Zaragoza, 1995
  • 15. R. Gómez-Alcalá, F. J. Fraile-Peláez, and I. Esquivias, "Bandstructure and Modal gain of Partially Interdiffused InGaAs/GaAs/AlGaAs SQW Lasers", Integrated Photonics Research Topical Meeting of the Optical Society of America (OSA), Boston (USA), 1996
  • 16. R. Gómez-Alcalá, F. J. Fraile-Peláez, and I. Esquivias, "Theoretical Calculation of Gain for Interdiffused GaAs/AlGaAs Quantum Well Lasers", CLEO (Conference on Lasers and Electro Optics), Anaheim (USA), 1996
  • 17. P. Chamorro-Posada, G.S. McDonald, G.H.C. New, F.J. Fraile-Peláez, "Fast algorithm for studying the evolution of optical solitons under perturbations", Biennial IEEE Conference on Electromagnetic Field Computation (CEFC '98), Tucson, Arizona, 1998
  • 18. J. Sánchez-Curto, P. Chamorro-Posada, and F.J. Fraile-Peláez, "Vector implementation of the FFT beam propagation method", Biennial IEEE Conference on Electromagnetic Field Computation (CEFC '98), Tucson, Arizona, 1998
  • 19. D.J. Santos, R. Gómez-Alcalá, M. Prol, and F.J. Fraile-Peláez, "Semiconductor superlattices used as flat-response energy filters", 10th International Workshop on Physics of Semiconductor Devices, Delhi (India), 1999
  • 20. P. Chamorro-Posada y F.J. Fraile-Pelaez, "Group velocity control in microring resonador chains in the presence of gain or loss", Conference on Advanced Optoelectronics and Lasers (CAOL), Alushta (Crimea), Ucrania, 2008
  • 21. J. Sánchez-Curto, J. C. García-Escartín, P. Martín-Ramos, F. J. Díaz-Otero, J. Martín-Gil, L. M. Navas-Gracia, F. J. Fraile-Peláez y P. Chamorro-Posada, “Solitones Ópticos, Información Cuántica, OLEDs y Microanillos en el Grupo de Fotónica e Información Cuántica de la UVA”, IX Reunión Nacional de Óptica, Ourense (España), 2009
  • 22. P. Chamorro-Posada, F. J. Fraile-Pelaez, "New Coupled Micro-Ring Resonator Structures and Laser Arrays", 5th International CONFERENCE on ADVANCED OPTOELECTRONICS and LASERS (CAOL 2010), Sevastopol, Crimea, Ukraine, 2010
  • 23. P. Chamorro-Posada, F. J. Fraile-Pelaez, F. J. Diaz-Otero, and E. Gago-Muñoz, “High-order micro-ring resonator transmission lines”, Ponencia invitada, 11-th International Conference on Laser & Fiber-Optical Networks Modeling, Publicación: Actas, Kharkov (Ucrania), 2011
  • 24. Pedro Chamorro Posada, José Vázquez Cabo, Pablo Martín Ramos, Luis M. Navas García, Jesús Martín Gil, Francisco M. Sánchez Arévalo, Óscar Rubiños López, F. Javier Fraile Peláez, Roberto C. Dante, “THz Spectroscopy of Polymeric Carbon Nitride from Melamine Cyanurate”, 21st International Conference on Applied Electromagnetics and Comunications ICECOM 2013, Dubrovnik (Croacia) 14-16 Octubre 2013
  • 25. F. J. Díaz Otero, P. Chamorro-Posada, F. J. Fraile-Pelaez, "Impact evaluation of third-order dispersion in strongly DM soliton interactions", CHAOS2014, 7th Chaotic Modeling and Simulation International Conference, Lisbon, 2014
  • 26. J. Gonzalez Payo, F. J. Fraile-Pelaez, M. Curty, "Sequential attacks against coherent one-way quantum key distribution", QCrypt2014, 4th International Conference on Quantum Cryptography, Paris, 2014