Oscillation of spatial solitons in a waveguide with a symmetrical refractive index profile |
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Authors: | Dong Liang-Wei Jin Hong-Zhen and Wang Hui |
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Institution: | Institute of Information Optics of Zhejiang Normal University, Jinhua 321004, China |
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Abstract: | Dynamics of (1+1)D spatial solitons in a Kerr medium with a
transversely symmetrical refractive index profile is investigated.
Propagation of solitons is analysed theoretically by using an
effective-particle approach. Analytical results show that the soliton
oscillates periodically with a variable acceleration. The expression
of oscillatory period is derived by introducing a concept of `average
acceleration'. Both acceleration and oscillatory period are
determined by the parameters of the input soliton and the waveguide.
Propagations of solitons are simulated numerically and good agreement
is obtained between the theoretical and numerical results. |
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Keywords: | effective-particle approach effective `acceleration' oscillatory period |
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