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Effects of Group-Velocity Dispersion on the Self-Trapped Optical Pulses in a Planar Waveguide
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LIU Shanliang;WANG Wenzheng;XU Jingzhi |
China Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080;
and Institute of Optical Communication, Liaocheng Teachers College, Liaocheng 252059 (mailing address)
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Cite this article: |
LIU Shanliang, WANG Wenzheng, XU Jingzhi 1995 Chin. Phys. Lett. 12 545-548 |
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Abstract We give the exact bright solitary wave solutions of (2+1)-dimensional nonlinear Schrödinger equation and analyze the effects of group-velocity dispersion (GVD) on the self-trapped pulses in a planar waveguide. The results show that the self-trapped pulses are unstable and collapse at higher peak power in a planar waveguide with the anomalous GVD, but the collapse does not occur in a planar waveguide with the normal GVD; the peak power required for self-trapping of the pulse in a planar waveguide with the normal GVD is less than the critical peak power for collapse of the pulses in a planar waveguide with the anomalous GVD.
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Keywords:
42.65.Jx
42.82.Et
42.50.Ne
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Published: 01 September 1995
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PACS: |
42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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42.82.Et
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(Waveguides, couplers, and arrays)
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42.50.Ne
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Abstract
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