Exploració per tema "Optical waveguides"

Ara es mostren els items 1-10 de 10

    • Cross-connection management specialisation for WDM-OTN's 

      Rafel, Albert; Comellas Colomé, Jaume; Junyent Giralt, Gabriel; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      WDM optical transport networks (WDM-OTN) will use new all-optical nodes that will perform functions in the optical domain, using wavelength as a new network resource. This paper presents a new approach for the optical ...

    • Dynamic Y-branched structures in quadratic nonlinear media 

      Santos Blanco, M. Concepción (ELSEVIER SCIENCE BV, 2000-06-30)
      Article
      Accés obert
      A selfsplitting of the beams entering a waveguide made of a quadratic nonlinear material is observed numerically. Relative π phase differences between harmonics as positively contributing to linear diffraction are shown ...

    • Fabrication and experimental demonstration of a four-channel × 40 Gb/s TriPleX all-optical wavelength conversion platform 

      Avramopoulos, Hércules; Klein, E.J.; Stamatiadis, C.; Vyrsokinos, K.; Stampoulidis, L.; Lazarou, I.; Schrenk, Bernhard; Leinse, A.; Heideman, R.; Bruinink, C. (2011)
      Article
      Accés restringit per política de l'editorial
      We present a scalable circuit that performs multichannel, all-optical wavelength conversion employing semiconductor optical amplifiers (SOAs) and a densely integrated TriPleX photonic chip. The TriPleX device performs chirp ...

    • Multilevel direct DFB phase modulation in 6.25 GHz spectrally spaced UDWDM PONs 

      Cano Valadez, Iván Nicolás; Velásquez Micolta, Juan Camilo; Polo Querol, Víctor; Prat Gomà, Josep Joan (2016)
      Presentació
      Accés restringit per política de l'editorial
      Direct phase modulation of DFB is demonstrated with DPSK, DQPSK and Duobinary modulation formats and detected with an intradyne receiver based on a 120-degree hybrid. The system is tested in a 50 km fibre link with 6.25 ...

    • Observation of asymmetric solitons in waveguide arrays with refractive index gradient 

      Weimann, Steffen; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Szameit, Alexander; Torner Sabata, Lluís (2014-06-15)
      Article
      Accés restringit per política de l'editorial
      We study light propagation in waveguide arrays made in Kerr nonlinear media with a transverse refractive index gradient, and we find that the presence of the refractive index gradient leads to the appearance of a number ...

    • Similarity rules for nonlinear Kerr-like slab optical waveguides 

      Torner Sabata, Lluís; Pérez Torres, Juan (1992-06)
      Article
      Accés obert
      It is shown that the stationary waveguiding properties of TE guided waves in a slab optical waveguide with a nonlinear Kerr-like bounding medium can be described in a compact way by means of the usual normalized effective ...

    • Slow light enabled wavelength demultiplexing 

      Hayran, Zeki; Turduev, M.; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis; Kurt, H. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      Photonic crystal waveguides supporting band gap guided modes hold great potential to tailor the group velocity of propagating light. We propose and explore different wavelength demultiplexer design approaches that ...

    • Soliton content with quadratic nonlinearities 

      Artigas García, David; Torner Sabata, Lluís; Pérez Torres, Juan; Mihalache, Dumitru; Mazilu, D (1999-06)
      Article
      Accés obert
      Summary form only given. Quadratic solitons, that form through cascading in materials with second-order nonlinearities, are a topic of current intense investigation. Solitons have been observed in second harmonic generation ...

    • Soliton content with quadratic nonlinearities 

      Artigas García, David; Torner Sabata, Lluís; Pérez Torres, Juan; Mihalache, Dumitru; Mazilu, Dumitru (Optical Society of American (OSA), 1999)
      Comunicació de congrés
      Accés obert
      Summary form only given. Quadratic solitons, that form through cascading in materials with second-order nonlinearities, are a topic of current intense investigation. Solitons have been observed in second harmonic generation ...

    • Surveying of pure and hybrid plasmonic structures based on graphene for Terahertz Antenna 

      Hosseininejad, Seyed Ehsan; Alarcón Cot, Eduardo José; Komjani, Nader; Abadal Cavallé, Sergi; Lemme, Max; Bolívar, Peter Haring; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Graphene is a unique material for the implementation of terahertz antennas due to extraordinary properties of the resulting devices, such as tunability and compactness. Existing graphene antennas are based on pure plasmonic ...