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利用变分方法 ,推导出了在强色散管理的密集周期光纤中脉冲稳态传输的解析条件 ,并给出了初始脉冲峰值功率的表达式 .运用这些公式 ,对各种色散管理系统中孤子的演化进行了半解析的考察 .三阶色散也被考虑在内 .结果表明 :不完善的色散斜率补偿将导致脉冲中心位置的偏移甚至严重的孤子形状劣化
By using the variational method, the analytical conditions of impulse steady-state transmission in a dense periodic fiber with strong dispersion management are deduced and the expression of the initial impulse peak power is given. Using these formulas, The third-order dispersion is also taken into account.The results show that the imperfect dispersion slope compensation will lead to the shift of the center position of the pulse and even the serious deterioration of the soliton shape