• 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 ...
    • Design of subwavelength grating metamaterial waveguides for communications and sensing applications 

      Ortega-Moñux, Alejandro; Luque-González, José Manuel; Pereira Martín, Daniel; Sánchez Postigo, Alejandro; Hadij ElHouati, Abdel; [et al.] (2019-07-04)
      In this work we will cover some of our recent advances in the design of state-of-the-art silicon photonic devices based on all-dielectric subwavelength grating (SWG) metamaterials. Specifically, we will focus on the design ...
    • Diseño de antena óptica integrada de haz estrecho en tecnología silicon-on-insulator 

      Ortega-Moñux, Alejandro; Pereira-Martín, Daniel; Hadj-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 ...
    • Enhanced sensitivity subwavelength grating waveguides for silicon photonics sensing applications 

      Wanguemert-Perez, Juan Gonzalo; Hadij-El-Houati, Abdelfettah; Sanchez-Postigo, Alejandro; Leuermann, Jonas; Pereira-Martín, Daniel; [et al.] (2019-07-16)
      In this work we will review the enormous potential of subwavelength grating waveguides for sensing applications in the near and mid-infrared bands, demonstrating the capability to engineer the mode profile to maximize the ...
    • High performance silicon photonic devices based on practical metamaterials 

      Halir, Robert; Luque-González, Jose Manuel; Sánchez-Postigo, Alejandro; Herrero-Bermello, Alaine; González-Andrade, David; [et al.] (2019-07-15)
      Subwavelength grating metamaterials are enabling a new generation of high-performance silicon photonic devices. Here we discuss the fundamental physics along with some of the latest advances in this rapidly expanding field.
    • Subwavelength-grating metamaterial integrated devices for the near- and mid-infrared wavelengths 

      Sánchez-Postigo, Alejandro; Wanguemert-Perez, Juan Gonzalo; Ortega-Moñux, Alejandro; Halir, Robert; Pereira-Martín, Daniel; [et al.] (2021)
      The subwavelength patterning of planar structures is now widely used in silicon photonics, enabling the synthesis of metamaterials with engineered optical properties, including refractive index, dispersion, and anisotropy. ...