Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Donna K. Bandy"'
Publikováno v:
Nonlinear Dynamics. 105:1877-1883
We propose a technique called the power-shift method to discover new attractors and access known attractors in experimental systems by solely shifting the control parameter of a multistable system in situ. Power shifting is a type of incremental pert
Publikováno v:
Applied Sciences, Vol 11, Iss 9905, p 9905 (2021)
Applied Sciences
Volume 11
Issue 21
Applied Sciences
Volume 11
Issue 21
Universal, predictive attractor patterns configured by Lyapunov exponents (LEs) as a function of the control parameter are shown to characterize periodic windows in chaos just as in attractors, using a coherent model of the laser with injected signal
Publikováno v:
Chaos (Woodbury, N.Y.). 31(1)
Coexisting attractors are studied in a single-mode coherent model of a laser with an injected signal. We report that every attractor has a unique Lyapunov exponent (LE) pattern that is choreographed by the subtle variations in the attractor's dynamic
Publikováno v:
Optics Communications. 271:124-131
Coupled-mode theory is used to numerically calculate the coupling coefficients between the modes of a tapered fiber and those of a fused-silica microsphere. In the visible and near-infrared wavelength ranges, typical tapered fibers are multimode. To
Publikováno v:
Physical Review A. 92
We show that the role of the Lyapunov exponents can be extended beyond the customary local instability, such as limit cycle behavior, to include its use as an evolutionary predictor of the dynamics of a laser with injected signal (LIS). Numerical stu
Autor:
A. N. Oraevsky, Donna K. Bandy
Publikováno v:
Optics Communications. 129:75-80
We discuss the feasibility of using a semiconductor microball as an optical bistable element. We analyze the bistability conditions using whispering-gallery modes and compare the bistability parameters for a semiconductor band-band transition with th
Publikováno v:
Quantum Electronics. 24:563-569
A two-level model is used to investigate the dynamics of a monovelocity-beam maser over a wide range of its parameters. The bistability, multistability, and chaotic pulsation regions are found. Calculations are made of the dimensionality of the attra
Autor:
Donna K. Bandy, D. J. Jones
Publikováno v:
Optics Communications. 92:376-384
We investigate the time-dependent behavior of an optically thin passive medium driven by an external coherent signal and show dynamical hysteresis effects in the regimes of large and small Fresnel numbers, positive and negative detuning, and changes
Publikováno v:
Optics Communications. 85:360-364
We show that electron temperature deviation from the lattice temperature in semiconductor lasers can lead to gain saturation not directly connected to the energy level population, and to self-pulsing in the laser output. The effects seen in the semic
Autor:
Donna K. Bandy, I.E. Protsenko
Publikováno v:
Optics Communications. 80:242-248
A sharp increase in laser field absorption for the resonance between valence bands of a semiconductor is predicted and necessary conditions for a jump in absorption is defined theoretically. Using IR laser radiation on the order of 10 W/cm 2 a jump i