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FDTD analysis of the effect of higher-order dispersion on optical soliton propagation

YANG Cheng,ZHENG Qin-hong,LI Xiu-ming,LI Qiao(School of Physics and Electronic Information,Yunnan Normal University,Kunming 650092,China)  
The Finite Difference Time Domain(FDTD) method is presented for solving the nonlinear Schr?dinger equation(NLS)with the high-order dispersion effect,numerical results show that the results obtained by the FDTD agree well with that of the traditional the Split-step Fourier transform method.The third-order dispersion effect causes the soliton pulse produce oscillation on a single right side of propagation direction and the fourth-order effect causes to oscillate on both sides of the soliton pulse.They affect soliton transmission seriously.It has been shown that the FDTD is an effctive method for analysis of the soliton transmission.
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