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从描述光孤子传输的非线性薛定谔(NLS)方程出发,给出了色散管理和非线性管理的光孤子的传输方程,利用对称分步傅里叶方法对方程进行数值求解,模拟研究了色散管理和非线性管理控制光孤子在光纤中的传输演化特性。结果表明,只有色散管理控制光孤子群在光纤中的传输,随着传输距离增加,孤子间的相互作用逐渐加剧,如色散管理和非线性管理同时控制光孤子群在光纤中的传输,可极大地抑制孤子间的相互作用,且随着距离增加相邻孤子间的作用几乎不变,这一结果可应用于光孤子群远距离的传输。
From the description of the nonlinear Schr (o) dinger equation of optical soliton transmission, the propagation equations of optical solitons with dispersion management and non-linear management are given. The equations are solved numerically by using the symmetric step-Fourier method. The dispersion management And nonlinear management of optical solitons in the optical fiber transmission evolution. The results show that only dispersion management controls the propagation of optical solitons in the optical fiber. As the transmission distance increases, the interaction between solitons gradually aggravates. For example, dispersion management and nonlinear management can control the transmission of optical solitons in the optical fiber. The earth suppresses the interaction between solitons, and as the distance increases, the effect between adjacent solitons remains almost unchanged. This result can be applied to the long distance transmission of solitons.