Browsing Citations Only by Author "Erneux, Thomas"

Now showing items 1-20 of 21

    • All-optical double-sideband suppressed-carrier modulation of semiconductor lasers 

      Varangis, Petros; Gavrielides, Athanasios; Kovanis, Vassilios; Erneux, Thomas; Lester, Luke (American Institute of Physics, 1998-06-15)
      We demonstrate theoretically and verify experimentally that injection locking may be used to achieve double-sideband suppressed-carrier modulation of semiconductor lasers. Our theoretical investigation explains the suppression ...

    • Analytical stability boundaries for a semiconductor laser subject to optical injection 

      Gavrielides, Athanasios; Kovanis, Vassilios; Erneux, Thomas (Elsevier Science B.V., 1997-03-15)
      We determine analytically the stability boundaries of a semiconductor laser subject to external optical injection. Specifically, we derive the exact conditions for a steady state limit point and a Hopf bifurcation point ...

    • Averaged equations for injection locked semiconductor lasers 

      Nizette, Michel; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios (Elsevier Science B.V., 2002-01-15)
      An averaging method valid for strongly nonlinear oscillators is used for the first time to describe the pulsating intensity regimes of semiconductor lasers subject to injection. Slow-time equations are derived which are ...

    • Bifurcation to mixed external cavity mode solutions for semiconductor lasers subject to optical feedback 

      Erneux, Thomas; Rogister, Fabien; Gavrielides, Athanasios; Kovanis, Vassilios (Elsevier Science B.V., 2000-09-15)
      The Lang and Kobayashi equations modeling a semiconductor laser subject to optical feedback admit time-periodic solutions which are combinations of two distinct external cavity modes. We construct these solutions analytically ...

    • Bistability of pulsating intensities for double-locked laser diodes 

      Nizette, Michel; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios; Simpson, Thomas (American Physical Society, 2002-05)
      Rate equations for semiconductor lasers subjected to simultaneous near-resonant optical injection and microwave current modulation are examined by combined analytical-numerical bifurcation techniques. Simple qualitative ...

    • Controlling chaos may induce new attractors in an optical device 

      Gavrielides, Athanasios; Alsing, Paul; Kovanis, Vassilios; Erneux, Thomas (Elsevier Science, B.V., 1995-04-01)
      The logistic map has been used to describe period doubling bifurcations for periodically modulated lasers. It also represents an asymptotic approximation of Ikeda's map for a passive ring cavity. Because various control ...

    • Frequency entrainment in optically injected semiconductor lasers 

      Varangis, Petros; Gavrielides, Athanasios; Erneux, Thomas; Kovanis, Vassilios; Lester, Luke (American Physical Society, 1997-03-24)
      We theoretically predict and experimentally demonstrate the phenomenon of frequency entrainment in optically injected semiconductor lasers. The laser exhibits nonlinear subharmonic and ultraharmonic resonances for appropriate ...

    • Injection-locked semiconductor laser dynamics from large to small detunings 

      Nizette, Michel; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios (The International Society for Optical Engineering (SPIE), 1999-08)
      The equations for a semiconductor laser subject to injection are examined numerically and analytically from large negative to moderate negative to positive values of the detuning. We concentrate on the stability of the ...

    • Lang and Kobayashi phase equation 

      Alsing, Paul; Kovanis, Vassilios; Gavrielides, Athanasios; Erneux, Thomas (American Physical Society, 1996-06)
      Lang and Kobayashi equations for a semiconductor laser subject to optical feedback are investigated by using asymptotic methods. Our analysis is based on the values of two key parameters, namely, the small ratio of the ...

    • Lang and Kobayashi phase equation and its validity for low pump 

      Erneux, Thomas; Alsing, Paul; Kovanis, Vassilios; Gavrielides, Athanasios (The International Society for Optical Engineering (SPIE), 1996-05)
      An asymptotic theory of Lang and Kobayashi (LK) equations describing a semiconductor laser subject to optical feedback is investigated in detail. We obtain a simple third order, nonlinear, delay-differential equation for ...

    • Largely detuned injection-locked semiconductor lasers 

      Kovanis, Vassilios; Erneux, Thomas; Gavrielides, Athanasios (Elsevier Science B.V., 1999-01-01)
      The equations for a semiconductor laser subject to injection are examined numerically and analytically for large values of the detuning parameter. Our analysis is motivated by recent experimental studies using either ...

    • Localized synchronization in two coupled nonidentical semiconductor lasers 

      Hohl-AbiChedid, Angela; Gavrielides, Athanasios; Erneux, Thomas; Kovanis, Vassilios (American Physical Society, 1997-06-23)
      The dynamics of two mutually coupled but nonidentical semiconductor lasers are studied experimentally, numerically, and analytically for weak coupling. The lasers have dissimilar relaxation oscillation frequencies and ...

    • Low pump limit of the bifurcation to periodic intensities in a semiconductor laser subject to external optical feedback 

      Lythe, Grant; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios (American Physical Society, 1997-06)
      The conditions for a bifurcation to periodic intensities (Hopf bifurcation) for low values of the pump current are examined using singular perturbation methods. We show that the frequency of the oscillations at the bifurcation ...

    • Mechanism for period-doubling bifurcation in a semiconductor laser subject to optical injection 

      Erneux, Thomas; Kovanis, Vassilios; Gavrielides, Athanasios; Alsing, Paul (American Physical Society, 1996-06)
      The single-mode rate equations for a semiconductor laser subject to optical injection are investigated analytically. We determine the first branch of periodic solutions for low values of the injection field. For larger ...

    • Mutual entrainment in delay-coupled non-identical semiconductor lasers 

      Hohl-AbiChedid, Angela; Gavrielides, Athanasios; Erneux, Thomas; Kovanis, Vassilios (The International Society for Optical Engineering (SPIE), 1997-06)
      The dynamics of two mutually coupled but non-identical semiconductor lasers are studied experimentally, numerically and analytically for weak coupling. The lasers have dissimilar relaxation oscillation frequencies ...

    • Period three limit-cycles in injected semiconductor lasers 

      Gavrielides, Athanasios; Kovanis, Vassilios; Nizette, Michel; Erneux, Thomas; Simpson, Thomas (Institute of Physics Publishing, 2002-02)
      Experiments showing period three intensity oscillations are reported for a semiconductor laser subject to external injection. These oscillations appear close to a period doubling bifurcation of the fundamental laser ...

    • Quasiperiodic synchronization for two delay-coupled semiconductor lasers 

      Hohl-AbiChedid, Angela; Gavrielides, Athanasios; Erneux, Thomas; Kovanis, Vassilios (American Physical Society, 1999-05)
      The dynamical behavior of two mutually coupled semiconductor lasers is studied experimentally, numerically, and analytically for weak coupling. The lasers have dissimilar relaxation oscillation frequencies and intensities, ...

    • Stability and bifurcations of periodically modulated, optically injected laser diodes 

      Nizette, Michel; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios (American Physical Society, 2001-02)
      Recent experiments using lasers subject to external injection

    • Subharmonic transition in an optically injected semiconductor laser: theory and experiments 

      Gavrielides, Athanasios; Erneux, Thomas; Kovanis, Vassilios; Alsing, Paul; Simpson, Thomas (Institute of Physics, 1997-08)
      The equations for a semiconductor laser subject to detuned optical injection are analysed using asymptotic methods. We derive a third-order equation for the phase of the laser field which is then investigated for small ...

    • Synchronization of coupled semiconductor lasers 

      Hohl-AbiChedid, Angela; Erneux, Thomas; Gavrielides, Athanasios; Kovanis, Vassilios (The International Society for Optical Engineering (SPIE), 1998-07)
      The dynamics of two mutually coupled semiconductor lasers is studied experimentally and numerically for weak coupling. The two lasers are pumped at different levels and have dissimilar free-running relaxation oscillation ...