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On pulse broadening for optical solitons

H. J. S. Dorren·J. J. B. van den Heuvel
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Abstract

Pulse broadening for optical solitons due to birefringence is investigated. We present an analytical solution which describes the propagation of solitons in birefringent optical fibers. The special solutions consist of a combination of purely solitonic terms propagating along the principal birefringence axes and soliton-soliton interaction terms. The solitonic part of the solutions indicates that the decay of initially localized pulses could be due to different propagation velocities along the birefringence axes. We show that the disintegration of solitonic pulses in birefringent optical fibers can be caused by two effects. The first effect is similar as in linear birefringence and is related to the unequal propagation velocities of the modes along the birefringence axes. The second effect is related to the nonlinear soliton-soliton interaction between the modes, which makes the solitonic pulse-shape blurred.

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H. J. S. Dorren, J. J. B. van den Heuvel. 1999-10-14. On pulse broadening for optical solitons. https://arxiv.org/abs/solv-int/9905013

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