Exploració per tema "Làsers de diode"

Ara es mostren els items 1-7 de 7

    • All optical implementation of a stochastic logic gate using a VCSEL with external optical injection 

      Perrone, S.; Masoller Alonso, Cristina; Vilaseca Alavedra, Ramon (2011)
      Text en actes de congrés
      Accés obert
      We perform numerical simulations of the dynamics of two VCSELs optically coupled in a master-slave configuration. We show that the interplay of nonlinearity and spontaneous emission noise can yield logic behavior, and the ...

    • Arduino based laser control 

      Bernal Muñoz, Ferran (Universitat Politècnica de Catalunya, 2015-01)
      Treball Final de Grau
      Accés obert
      [ANGLÈS] Diode laser for communications control based on an Arduino board. Temperature control implementation. Software and hardware protection for the laser implementation.

    • Development of an image sensor platform for microorganisms in water 

      Sevilla Dalmau, Daniel (Universitat Politècnica de Catalunya, 2018-09-06)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      In this thesis, we demonstrate the correct operation of a fluorescence sensor designed for the analysis of water samples, in concrete phytoplankton levels and microorganism counting. The system, based on different techniques ...

    • Diode laser operation under orthogonal feedback : experiments and theory 

      Sorrentino, T.; Masoller Alonso, Cristina; Soares, C.; Vidal, I.; Oria, Marcos (2011)
      Text en actes de congrés
      Accés obert
      We report experimental and numerical investigations concerning semiconductor lasers emission under polarization-rotated feedback. We experimentally observe that for some semiconductor lasers the weak TM mode does lase even ...

    • Multi-stability and transient chaotic dynamics in semiconductor lasers with time-delayed optical feedback 

      Zamora Munt, Jordi; Masoller Alonso, Cristina; García Ojalvo, Jordi (World Scientific Publishing, 2010)
      Capítol de llibre
      Accés restringit per política de l'editorial
      We investigate numerically the chaotic transient dynamics of a semiconductor laser with time-delayed optical feedback. This transient behavior is seen in the low-frequency fluctuations (LFF) regime ocurring when the laser ...

    • Optical power model of a laser bar diode 

      Borràs Cristòfol, Ramon; Río Fernandez, Joaquín del; Oriach, Carles; Juliachs, Jordi (Institute of Physics (IOP), 2018)
      Text en actes de congrés
      Accés obert
      This article proposes a modelling method for laser diodes optical output power including its dependency on temperature. The device used for this study is a 40 W Monocrom's diode, with 808 nm wavelength emitted light and ...

    • Speckle reduction in double-pass retinal images 

      Halpaap Halpaap, Herbert Donatus; García Guerra, Carlos Enrique; Vilaseca Ricart, Meritxell; Masoller Alonso, Cristina (Nature, 2019-03-14)
      Article
      Accés obert