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Browsing by Subject "Integrated optics"

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Browsing by Subject "Integrated optics"

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    A CMOS Compatible Silicon-on-Insulator Polarization Rotator Based on Symmetry Breaking of the Waveguide Cross Section 
    Aamer, Mariam; Gutiérrez Campo, Ana María; Brimont, Antoine Christian Jacques; Vermeulen, Diedrik; Roelkens, Gunther; Fedeli, Jean-Marc; Håkansson, Ola Andreas; Sanchis Kilders, Pablo (Institute of Electrical and Electronics Engineers (IEEE), 2012-11-15)
    [EN] A polarization rotator in silicon-on-insulator technology based on breaking the symmetry of the waveguide cross section is reported. The 25-mu m-long device is designed to be integrated with standard grating couplers ...
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    A photonic microwave filter based on an asymmetric silicon Mach-Zehnder modulator 
    Gutiérrez Campo, Ana María; Sanchis Kilders, Pablo; Brimont, Antoine Christian Jacques; Thomson, David J.; Gardes, Frédéric Y.; Reed, Graham T.; Fédéli, Jean Marc; Vidal Rodriguez, Borja (Institute of Electrical and Electronics Engineers (IEEE), 2013-08)
    [EN] A new approach for implementing an integrable photonic microwave filter based on exploiting the asymmetry of a CMOS-compatible silicon Mach-Zehnder modulator is demonstrated. The strong dependence of the modulator ...
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    All-Silicon On-Chip Optical Nanoantennas as Efficient Interfaces for Plasmonic Devices 
    Lechago-Buendia, Sergio; García Meca, Carlos; Griol Barres, Amadeu; Kovylina, Miroslavna; Bellieres, Laurent Christophe; Martí Sendra, Javier (American Chemical Society, 2019-05-01)
    [EN] Plasmonic technology promises to unfold new advanced on-chip functionalities with direct applications in photovoltaics, light¿matter interaction, and the miniaturization of optical interconnects at the nanoscale. In ...
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    Analog Programmable-Photonic Computation 
    Macho-Ortiz, Andrés; Pérez-López, Daniel; Azaña, José; Capmany Francoy, José (John Wiley & Sons, 2023-10)
    [EN] The foundations of a new class of computation theory, termed Analog Programmable-Photonic Computation (APC), explicitly designed to unleash the full potential of programmable integrated photonic technology are presented. ...
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    Analytical model for calculating the nonlinear distortion in silicon-based electro-optic Mach-Zehnder modulators 
    Gutiérrez Campo, Ana María; Brimont, Antoine Christian Jacques; Herrera Llorente, Javier; Aamer, Mariam; Thomson, Dave J.; Gardes, Frederic Y.; Reed, Graham T.; Fedeli, Jean-Marc; Sanchis Kilders, Pablo (Institute of Electrical and Electronics Engineers (IEEE), 2013-12)
    [EN] In this study, an analytical model for calculating the nonlinear harmonic/intermodulation distortion for RF signals in silicon-based electro-optic modulators is investigated by considering the nonlinearity on the ...
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    APODISED COUPLED RESONATOR OPTICAL WAVEGUIDES: THEORY, DESIGN AND CHARACTERIZATION 
    Doménech Gómez, José David (Universitat Politècnica de València, 2011-11-22)
    Theory, design, fabrication and characterization of integrated optics filters based on coupled ring resonators.
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    Apodized Coupled Resonator Optical Waveguides: Theory, design and characterization 
    Doménech Gómez, José David (Universitat Politècnica de València, 2013-09-23)
    In this work we propose the apodization or windowing of the coupling coefficients of the unit cells conforming a coupled resonator device as a mean to reduce the level of secondary sidelobes in the case of SCISSOR configuration ...
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    Auto-routing algorithm for field-programmable photonic gate arrays 
    López-Hernández, Aitor; Pérez-López, Daniel; Dasmahapatra, Prometheus; Capmany Francoy, José (The Optical Society, 2020-01-06)
    [EN] Programmable multipurpose photonic integrated circuits require software routines to make use of their flexible operation as desired. In this work, we propose and demonstrate the use of a modified tree-search algorithm ...
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    Field-programmable photonic arrays 
    Pérez-López, Daniel; Gasulla Mestre, Ivana; Capmany Francoy, José (The Optical Society, 2018)
    [EN] We propose a new programmable integrated photonic device, the Field Programmable Photonic Array, which follows a similar rationale as that of Field Programmable Gate Arrays and Field Programmable Analog Arrays in ...
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    Graphene Integrated Microwave Photonics 
    Capmany Francoy, José; Doménech Gómez, José David; Muñoz Muñoz, Pascual (Institute of Electrical and Electronics Engineers, 2014)
    [EN] This paper proposes and analyzes the incorporation of graphene to integrated waveguides and circuits for application to the field of microwave photonics (MWP). We discuss the main optical and electronic properties of ...
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    High nonlinear figure-of-merit amorphous silicon waveguides 
    Matres Abril, Joaquín; Ballesteros García, Guillem; Gautier, Pauline; Fedeli, J.M.; Martí Sendra, Javier; Oton Nieto, Claudio José (Optical Society of America: Open Access Journals, 2013-02-25)
    The nonlinear response of amorphous silicon waveguides is reported and compared to silicon-on-insulator (SOI) samples. The real part of the nonlinear coefficient gamma is measured by four-wave-mixing and the imaginary part ...
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    High signal-to-noise ratio ultra-compact lab-on-a-chip microflow cytometer enabled by silicon optical antennas 
    Lechago-Buendia, Sergio; García Meca, Carlos; Sánchez Losilla, Nuria; Griol Barres, Amadeu; Martí Sendra, Javier (The Optical Society, 2018)
    [EN] We experimentally demonstrate an all-silicon nanoantenna-based micro-optofluidic cytometer showing a combination of high signal-to-noise ratio (SNR) > 14 dB and ultra-compact size. Thanks to the ultra-high directivity ...
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    High-contrast 40 Gb/s operation of a 500 um long silicon carrier-depletion slow wave modulator 
    Brimont, Antoine Christian Jacques; Thomson, D. J.; Gardes, F. Y.; Fedeli, J. M.; Reed, G. T.; Martí Sendra, Javier; Sanchis Kilders, Pablo (Optical Society of America, 2012)
    [EN] In this Letter, we demonstrate a highly efficient, compact, high-contrast and low-loss silicon slow wave modulator based on a traveling-wave Mach¿Zehnder interferometer with two 500 μm long slow wave phase ...
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    Innovative Concepts in Microwave Photonics 
    Capmany Francoy, José; Sales Maicas, Salvador; Gasulla Mestre, Ivana; Mora Almerich, José; Lloret Soler, Juan Antonio; Sancho Durá, Juan (Instituto de Telecomunicaciones y Aplicaciones Multimedia (ITEAM), 2012)
    This paper reports the work carried by ITEAM researchers on novel concepts in the field of Microwave Photonics (MWP). It includes activities related to the general modelling of MWP systems, the use of novel multicore ...
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    Integrated Microwave Photonics for Radio Access Networks 
    Capmany Francoy, José; Muñoz Muñoz, Pascual (Institute of Electrical and Electronics Engineers, 2014)
    [EN] We explore the advantages that integrated microwave photonics (IMWP) can bring to access networks. We first of all review the most common architectures of radio access networks (RANs) to identify the segments where ...
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    Integrated Optical Filters for Microwave Photonic Applications 
    Sánchez Fandiño, Javier Antonio (Universitat Politècnica de València, 2016-07-18)
    [EN] Microwave photonics (MWP) is a well-established research field that investigates the use of photonic technologies to generate, distribute, process and analyze RF waveforms in the optical domain. Despite its great ...
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    Integrated photonic tunable basic units using dual-drive directional couplers 
    Pérez-López, Daniel; Gutierrez Campo, Ana Maria; Sánchez-Gomáriz, Erica; Dasmahapatra, Prometheus; Capmany Francoy, José (The Optical Society, 2019-12-23)
    [EN] Photonic integrated circuits based on waveguide meshes and multibeam interferometers call for large-scale integration of Tunable Basic Units (TBUs) that feature beam splitters and waveguides. This units are loaded ...
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    Low TPA and free-carrier effects in silicon nanocrystal-based horizontal slot waveguides 
    Matres Abril, Joaquín; Lacava, C.; Ballesteros García, Guillem; Minzioni, P.; Cristiani, I.; Fedeli, J. M.; Martí Sendra, Javier; Oton Nieto, Claudio José (Optical Society of America, 2012)
    We present the characterization of the ultrafast nonlinear dynamics of a CMOS-compatible horizontal-slot waveguide with silicon nanocrystals. Results are compared to strip silicon waveguides, and modeled with nonlinear ...
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    Low-Loss and Compact Silicon Rib Waveguide Bends 
    Brimont, Antoine Christian Jacques; Hu, X.; Cueff, Sébastien; Rojo-Romeo, Pedro; Saint Girons, Guillaume; Griol Barres, Amadeu; Zanzi, Andrea; Sanchis Kilders, Pablo; Orobtchouk, Regis (Institute of Electrical and Electronics Engineers (IEEE), 2016-02-01)
    [EN] Waveguide bends support intrinsically leaky propagation modes due to unavoidable radiation losses. It is known that the losses of deep-etched/strip waveguide bends increase inevitably for decreasing radius. Here, we ...
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    Low-Power Operation in a Silicon Switch Based on an Asymmetric Mach Zehnder Interferometer 
    Sánchez Diana, Luis David; Griol Barres, Amadeu; Lechago Buendía, Sergio; Brimont, Antoine Christian Jacques; Sanchis Kilders, Pablo (Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2015-04)
    [EN] Mach Zehnder interferometer (MZI) structures are widely used as optical switches in photonic integrated circuits. However, power consumption is still the key parameter to make such devices practical in the silicon ...