Now showing items 1-6 of 6

    • Deposition of an overlay with electrostactic self-assembly method in long period fiber gratings 

      Del Villar, Ignacio Upna; Achaerandio, Miguel Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna (Optical Society of America, 2005)   Artículo / Artikulua  OpenAccess
      It was proved that the deposition of an overlay material onto a long-period fiber grating causes important shifts in the wavelengths of the typical attenuation bands that are caused by coupling between cladding and core ...
    • Enhancement of sensitivity in long period fiber gratings with deposition of low refractive index materials 

      Del Villar, Ignacio Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna (Optical Society of America, 2005)   Artículo / Artikulua  OpenAccess
      It was proved [Opt. Lett. 30, 720 (2005)] that the deposition of an overlay of higher refractive index than that of the cladding on a long-period fiber grating (LPFG) causes large shifts in the attenuation bands induced by ...
    • General synthesis of tapered matching sections for single mode operation using the coupled-mode theory 

      Percaz Ciriza, Jon Mikel Upna; Arnedo Gil, Israel Upna; Arregui Padilla, Iván Upna; Teberio Berdún, Fernando Upna; Martín Iglesias, Petronilo; Gómez Laso, Miguel Ángel Upna; Lopetegui Beregaña, José María Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      In this paper, a novel and general method to synthetize microwave waveguide tapers intended for single mode operation is proposed. The technique is based on the use of an exact series solution of the inverse scattering ...
    • Influence in cladding mode distribution of overlay deposition on long-period fiber gratings 

      Del Villar, Ignacio Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna (Optical Society of America, 2006)   Artículo / Artikulua  OpenAccess
      A thin overlay of higher refractive index than that of the cladding of a long-period fiber grating induces in cladding modes strong variations in effective index, mode profile, cross-coupling coefficient with the core ...
    • Synthesis of high-performance smooth-profiled tapers and filters in microstrip and rectangular waveguide technologies 

      Percaz Ciriza, Jon Mikel Upna (2020)   Tesis doctoral / Doktoretza tesia
      En esta tesis, los fundamentos teóricos y la formulación de la Teoría de Acoplo de Modos para el análisis y el modelado electromagnético de guías de onda no uniformes son utilizadas para desarrollar diferentes técnicas de ...
    • Synthesis of one dimensional electromagnetic bandgap structures with fully controlled parameters 

      Arnedo Gil, Israel Upna; Chudzik, Magdalena Upna; Percaz Ciriza, Jon Mikel Upna; Arregui Padilla, Iván Upna; Teberio Berdún, Fernando Upna; Benito Pertusa, David Upna; Lopetegui Beregaña, José María Upna; Gómez Laso, Miguel Ángel Upna (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      In this paper, we propose a novel synthesis strategy for the design of one dimensional electromagnetic bandgap (1- D-EBG) structures where all the performance parameters of these devices can fully be controlled, i.e., ...