Phase and amplitude near-resonance self-action in periodically modulated laser beams

Full space-time numerical modeling of near-resonance self-action of a beam, whose frequency is harmonically modulated in time, is presented. Maxwell-Bloch equations describing the propagation of the beam through a two-level medium with saturable absorption and refraction are solved using an original...

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Main Authors: Derbov, V.L., Serov, V.V., Plastun, I.L., Larionov, D.A.
Format: Conference Proceeding
Language:English
Subjects:
Amplitude modulation
Frequency modulation
Laser beams
Laser modes
Maxwell equations
Nonlinear equations
Numerical models
Optical modulation
Optical propagation
Phase modulation
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creator Derbov, V.L.
Serov, V.V.
Plastun, I.L.
Larionov, D.A.
description Full space-time numerical modeling of near-resonance self-action of a beam, whose frequency is harmonically modulated in time, is presented. Maxwell-Bloch equations describing the propagation of the beam through a two-level medium with saturable absorption and refraction are solved using an original stable numerical scheme for multidimensional nonlinear Schrodinger equations. Delayed redistribution of intensity over the beam cross-section due to nonlinear self-focusing and self-phase-modulation effects is shown to affect the phase and the amplitude dynamics of the output signal in a rather nontrivial way, depending on the carrier laser frequency.
doi_str_mv 10.1109/ICTON.2003.1263133
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Amplitude modulation
Frequency modulation
Laser beams
Laser modes
Maxwell equations
Nonlinear equations
Numerical models
Optical modulation
Optical propagation
Phase modulation
title Phase and amplitude near-resonance self-action in periodically modulated laser beams
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