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Modulational instability of spatially broadband nonlinear optical pulses in four-state atomic systems

M. Marklund·P. K. Shukla·R. Bingham·J. T. Mendonca
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Abstract

The modulational instability of broadband optical pulses in a four-state atomic system is investigated. In particular, starting from a recently derived generalized nonlinear Schrödinger equation, a wave-kinetic equation is derived. A comparison between coherent and random phase wave states is made. It is found that the spatial spectral broadening can contribute to the nonlinear stability of ultra-short optical pulses. In practical terms, this could be achieved by using random phase plate techniques.

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M. Marklund, P. K. Shukla, R. Bingham, J. T. Mendonca. 2006-11-14. Modulational instability of spatially broadband nonlinear optical pulses in four-state atomic systems. https://doi.org/10.1103/physreve.74.067603

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