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Now showing items 11-20 of 21
Unfolding of the period-two bifurcation in a fiber laser pumped with two modulation tones
(American Physical Society, 1997-12)
The effect of a small second frequency component on a pump modulated neodymium fiber laser is investigated experimentally and theoretically. This term, whose frequency is exactly half the primary driver, incites an unfolding ...
Subharmonic transition in an optically injected semiconductor laser: theory and experiments
(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 ...
Localized synchronization in two coupled nonidentical semiconductor lasers
(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
(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 ...
Mutual entrainment in delay-coupled non-identical semiconductor lasers
(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 ...
Frequency entrainment in optically injected semiconductor lasers
(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 ...
Analytical stability boundaries for a semiconductor laser subject to optical injection
(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 ...
Lang and Kobayashi phase equation
(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 ...
Mechanism for period-doubling bifurcation in a semiconductor laser subject to optical injection
(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 ...
Lang and Kobayashi phase equation and its validity for low pump
(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 ...