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用守恒量扰动法获得了色散指数缓变光纤中含三阶色激的非线性薛定谔方程的基本孤子解。理论分析了色散指数级变光纤中光孤子的传输特性，发现三阶色散使光孤子产生时间漂移，漂移量与色散变化率有关。
The basic soliton solutions of the nonlinear Schr (o) dinger equation with third order chromatic dispersion in a dispersion index fiber are obtained by the conservative perturbation method. Theoretical analysis of the dispersion characteristics of exponential fiber optical soliton in the transmission characteristics and found that the third-order dispersion solitons produce time drift, drift and dispersion rate of change.