Effects of Group-Velocity Dispersion on the Self-Trapped Optical Pulses in a Planar Waveguide
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)
Effects of Group-Velocity Dispersion on the Self-Trapped Optical Pulses in a Planar Waveguide
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)
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.
LIU Shanliang;WANG Wenzheng;XU Jingzhi. Effects of Group-Velocity Dispersion on the Self-Trapped Optical Pulses in a Planar Waveguide
[J]. 中国物理快报, 1995, 12(9): 545-548.
LIU Shanliang, WANG Wenzheng, XU Jingzhi. Effects of Group-Velocity Dispersion on the Self-Trapped Optical Pulses in a Planar Waveguide
. Chin. Phys. Lett., 1995, 12(9): 545-548.
1995, Vol. 12 
