• Building high-performance integrated optical devices using subwavelength grating metamaterials 

      Sánchez-Postigo, Alejandro; Ginel-Moreno, Pablo; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Halir, Robert; [et al.] (2021-09)
      The use of subwavelength grating structures in silicon waveguides have fuelled the development of integrated optical components with superior performance. By a judicious lithographic pattern of the grating, the optical ...
    • Customized spectral filters using cladding-modulated Bragg gratings in silicon waveguides. 

      Pereira-Martín, Daniel; Ortega-Moñux, Alejandro; Luque-González, José Manuel; Hadij-ElHouati, Abdelfettah; Sánchez-Postigo, Alejandro; [et al.] (European Optical Society Annual Meeting (EOSAM) 2021., 2021-09-13)
      Waveguide Bragg gratings are expected to play an important role in diverse applications of photonic integrated circuits. Here, we present our latest progress in implementing Bragg filters with a customized spectral response ...
    • Design of arbitrary optical filters in silicon-on-insulator using evanescently-coupled Bragg gratings 

      Pereira-Martín, Daniel; Ortega-Moñux, Alejandro; Molina-Fernandez, Iñigo; Luque-González, José Manuel; Cheben, Pavel; [et al.] (2019-07-10)
      Spectral filters are experiencing an increasing demand in several applications of the silicon- on-insulator (SOI) platform. Many works have demonstrated that arbitrary frequency responses can be synthesized by apodizing ...
    • Diseño de antena óptica integrada de haz estrecho en tecnología silicon-on-insulator 

      Ortega-Moñux, Alejandro; Pereira-Martín, Daniel; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; Melati, Daniele; [et al.] (2021-07)
      Las antenas ópticas acopladas en fase son un elemento clave en sistemas de Light Detection and Ranging (LIDAR) integrados, en los que se necesita emitir un haz óptico con ancho angular estrecho en un amplio número de ...
    • Diseño de filtros ópticos integrados con respuesta espectral arbitraria en tecnología de silicio sobre aislante 

      Pereira-Martín, Daniel; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo; Cheben, Pavel; Schmid, Jens H.; [et al.] (2019-09-10)
      Silicon photonics is one of the most promising technologies nowadays, with myriads of potential applications in communications and sensing. Many of these applications require spectral filters synthesizing arbitrary frequency ...
    • Integrated metamaterial surface-emitting antenna for beam steering applications 

      Ginel-Moreno, Pablo; Sánchez-Postigo, Alejandro; de-Oliva Rubio, José; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; [et al.] (2021-12)
      Integrated optical antennas are relevant devices for the development of next-generation LIDAR systems. Here we experimentally demonstrate a new topology to implement long antennas in silicon-on-insulator platform. The ...
    • Subwavelength-engineered metamaterial devices for integrated photonics 

      Sánchez-Postigo, Alejandro; Ginel-Moreno, Pablo; Pereira-Martín, Daniel; Hadij-ElHouati, Abdelfettah; Luque-González, José Manuel; [et al.] (2022)
      The engineering of subwavelength grating metamaterials has become an essential design strategy in silicon photonics. The lithographic segmentation of integrated waveguides at the subwavelength scale enables the synthesis ...