Results 281 to 290 of about 5,782,871 (345)
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2017
In this chapter the dynamics of a passively mode-locked semiconductor laser will be studied using the model presented in Chap. 2.
L. Jaurigue
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In this chapter the dynamics of a passively mode-locked semiconductor laser will be studied using the model presented in Chap. 2.
L. Jaurigue
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Optics and Laser Technology, 2021
In this study, a transient mesoscale model of the laser inside additive manufacturing (LIAM) has been proposed by the finite volume method (FVM) to investigate the evolution of molten pool morphology.
Xinyu Shi +6 more
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In this study, a transient mesoscale model of the laser inside additive manufacturing (LIAM) has been proposed by the finite volume method (FVM) to investigate the evolution of molten pool morphology.
Xinyu Shi +6 more
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Laser dynamics in organic distributed feedback lasers
Applied Physics Letters, 2006The authors study laser dynamics in a polymer distributed feedback resonator by performing pump-probe experiments. They measured the population kinetics in the device under lasing operation with subpicosecond time resolution. By modeling the system with a set of coupled rate equations, which account for stimulated emission and nonradiative decays, they
ZAVELANI ROSSI, MARGHERITA +4 more
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Physical Review A, 1995
Degenerate as well as nondegenerate three-level two-photon laser (TPL) models are derived. In the limit of equal cavity losses for both fields, it is shown that the nondegenerate model reduces to the degenerate one. We also demonstrate the isomorphism existing between our degenerate TPL model and that of a dressed-state TPL. All these models contain ac-
, de Valcárcel GJ +3 more
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Degenerate as well as nondegenerate three-level two-photon laser (TPL) models are derived. In the limit of equal cavity losses for both fields, it is shown that the nondegenerate model reduces to the degenerate one. We also demonstrate the isomorphism existing between our degenerate TPL model and that of a dressed-state TPL. All these models contain ac-
, de Valcárcel GJ +3 more
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On the role of thermal fluid dynamics into the evolution of porosity during selective laser melting
Scripta Materialia, 2015C. Panwisawas +5 more
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Nonlinear dynamics of Raman lasers
Physical Review A, 1990It has recently been shown that single mode Raman lasers are reducible to a simple mathematical description [1] similar to that of the detuned Haken-Lorenz model but for which operating conditions are considerably relaxed. As such they provide excellent opportunity for quantitative tests of nonlinear dynamics.
, Lu, , Harrison
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Applied Optics, 1987
The dynamics of a pulsed laser spot covering an optical aperture of a receiver is analyzed. This analysis includes the influence of diffraction, jitter, atmospheric absorption and scattering, and atmospheric turbulence. A simple expression for the probability of response of the receiver illuminated by the laser spot is derived.
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The dynamics of a pulsed laser spot covering an optical aperture of a receiver is analyzed. This analysis includes the influence of diffraction, jitter, atmospheric absorption and scattering, and atmospheric turbulence. A simple expression for the probability of response of the receiver illuminated by the laser spot is derived.
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2010
Bridging the gap between laser physics and applied mathematics, this book offers a new perspective on laser dynamics. Combining fresh treatments of classic problems with up-to-date research, asymptotic techniques appropriate for nonlinear dynamical systems are shown to offer a powerful alternative to numerical simulations.
Thomas Erneux, Pierre Glorieux
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Bridging the gap between laser physics and applied mathematics, this book offers a new perspective on laser dynamics. Combining fresh treatments of classic problems with up-to-date research, asymptotic techniques appropriate for nonlinear dynamical systems are shown to offer a powerful alternative to numerical simulations.
Thomas Erneux, Pierre Glorieux
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Revealing the Transition Dynamics from Q Switching to Mode Locking in a Soliton Laser.
Physical Review Letters, 2019Q switching (QS) and mode locking (ML) are the two main techniques enabling generation of ultrashort pulses. Here, we report the first observation of pulse evolution and dynamics in the QS-ML transition stage, where the ML soliton formation evolves from ...
Xueming Liu, D. Popa, N. Akhmediev
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Dynamics of laser intracavity absorption
Physical Review A, 1985The dynamical behavior of a multimode dye laser with an intracavity absorber has been investigated theoretically as well as experimentally. This behavior is described by a system of rate equations which has to include the influence of saturation in the case of large absorption coefficients.
, Atmanspacher, , Scheingraber, , Vidal
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