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Synchronization of coupled semiconductor lasers
(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 ...
All-optical double-sideband suppressed-carrier modulation of semiconductor lasers
(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 ...
Fractal dimensions in tunneling processes and effects of environmental fluctuations
(World Scientific Publishing, 1998-03)
We study electron tunneling between two infinte potential square wells connected via an opaque barrier and find that time evolution of the probability of the presence of a Gaussian wave packet, localized initially in one ...
Encoding and decoding messages with chaotic lasers
(American Physical Society, 1997-12)
We investigate the structure of the strange attractor of a chaotic loss-modulated solid-state laser utilizing return maps based on a combination of intensity maxima and interspike intervals, as opposed to those utilizing ...
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 ...