Robust circularly polarized few-optical-cycle solitons in Kerr media

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.063802· OSTI ID:21550183

Leblond, Herve; Sanchez, Francois ^[1]; Triki, Houria ^[2]; Mihalache, Dumitru ^[1]

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1. Laboratoire de Photonique d'Angers, EA 4464, Universite d'Angers, 2 Bd. Lavoisier, FR-49045 Angers Cedex 01 (France)
2. Radiation Physics Laboratory, Department of Physics, Faculty of Sciences, Badji Mokhtar University, P.O. Box 12, DZ-23000 Annaba (Algeria)

We consider the propagation of circularly polarized few-cycle pulses (FCPs) in Kerr media beyond the slowly varying envelope approximation. Assuming that the frequency of the transition is far above the characteristic wave frequency (long-wave-approximation regime), we show that propagation of FCPs, taking into account the wave polarization, is described by the nonintegrable complex modified Korteweg-de Vries (cmKdV) equation. By direct numerical simulations, we get robust localized solutions to the cmKdV equation, which describe circularly polarized few-cycle-optical solitons and strongly differ from the breather soliton of the modified Korteweg-de Vries equation, which represents linearly polarized FCP solitons. The circularly polarized FCP soliton becomes unstable when the angular frequency is less than 1.5 times the inverse of the pulse length. The unstable subcycle pulses decay into linearly polarized half-cycle pulses, the polarization direction of which slowly rotates around the propagation axis.

• OSTI ID: 21550183
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
CALCULATION METHODS
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
EQUATIONS
GRAVITATIONAL FIELDS
KERR FIELD
KORTEWEG-DE VRIES EQUATION
MATHEMATICAL SOLUTIONS
PARTIAL DIFFERENTIAL EQUATIONS
POLARIZATION
PULSES
QUASI PARTICLES
SIMULATION
SOLITONS