We numerically analyze the selfocusing process of laser pulses propagating inside a photorefractive BSO crystal, simulating the carrier dynamics inside the material. We demonstrate that the soliton regime cannot be reached because of the delay of the photorefractive response in comparison to the excitation. As a consequence only relatively long pulses can efficiently excite the photorefractive nonlinearity, which is able to partially confine the pulse. The confined part has the typical polarization dynamics of a soliton in an optically active media, while the initial part just diffracts following a polarization dynamics which evolves towards the linear regime..

Self-waveguiding of light pulses in photorefractive BSO crystals: intensity and polarization dynamics / R., Rinaldi; Fazio, Eugenio; A., Petris; V. I., Vlad; Bertolotti, Mario. - STAMPA. - 5451:(2004), pp. 354-359. (Intervento presentato al convegno Conference Optics and Photonic Integrated Circuits tenutosi a Strasbourg, FRANCE nel APR 27-29, 2004) [10.1117/12.545859].

Self-waveguiding of light pulses in photorefractive BSO crystals: intensity and polarization dynamics

FAZIO, Eugenio;BERTOLOTTI, Mario
2004

Abstract

We numerically analyze the selfocusing process of laser pulses propagating inside a photorefractive BSO crystal, simulating the carrier dynamics inside the material. We demonstrate that the soliton regime cannot be reached because of the delay of the photorefractive response in comparison to the excitation. As a consequence only relatively long pulses can efficiently excite the photorefractive nonlinearity, which is able to partially confine the pulse. The confined part has the typical polarization dynamics of a soliton in an optically active media, while the initial part just diffracts following a polarization dynamics which evolves towards the linear regime..
2004
Conference Optics and Photonic Integrated Circuits
nonlinear optics; photorefractive materials; polarization dynamics; screening solitons
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Self-waveguiding of light pulses in photorefractive BSO crystals: intensity and polarization dynamics / R., Rinaldi; Fazio, Eugenio; A., Petris; V. I., Vlad; Bertolotti, Mario. - STAMPA. - 5451:(2004), pp. 354-359. (Intervento presentato al convegno Conference Optics and Photonic Integrated Circuits tenutosi a Strasbourg, FRANCE nel APR 27-29, 2004) [10.1117/12.545859].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231698
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