| 1. | Analysis of performance for dpsk dispersion managed soliton transmission system 色散管理孤子传输系统性能分析 |
| 2. | The influence of optical waveguide fiber loss on soliton transmission in owcs using the chromatic dispersion 光纤损耗对色散管理光通信系统中孤子传输的影响 |
| 3. | 3 ) we consider the averaged dispersion - managed ( dm ) fiber system equation , which governs the dynamics of the core of the dm solitons 3 )通过运用路径平均方法推导了色散管理( dm )孤子核的传输方程。 |
| 4. | First , the mean field method is studied in wdm systems with different dispersion maps . by employing this method the computational complexity is greatly reduced without significant sacrifice of the accuracy of the results 首先讨论了在不同色散管理方案下平均场方法的应用,该方法在不降低仿真精度的情况下大大缩减了所需运算量。 |
| 5. | Then the filter model is deduced to describe the intensity fluctuation induced by xpm in dispersion managed systems . according to this model , optimal dispersion management schemes are got 其次从理论上推导了在色散管理系统中由于交叉相位调制与色散互作用引起的脉冲强度起伏的滤波器模型,根据此模型得到了系统的优化色散补偿方案。 |
| 6. | Because of using of edfa , the attenuation of fibers was not an important transmission limitation . at the same time , dispersion managements and dispersion - supported techniques can be used to improve wdm system performances 由于edfa的实用化,光纤损耗对系统的限制已不是重要的因素了;同时,色散管理和色散支持技术可以有效地改善色散对系统性能的限制。 |
| 7. | Because of using of edfa , the allenuation of fibers was not an important transmission limitation . at the same time , dispersion managements and dispersion - supported techniques can be used to improve wdm system performances 由于edfa的实用化,光纤损耗对系统的限制已不是重要的因素了;同时,色散管理和色散支持技术可以有效地改善色散对系统性能的限制。 |
| 8. | Using the variational method , analytical conditions for stationary pulse propagation in dense period fibers with strong dispersion management are deduced . the expression of initial soliton peak power is given . by employing the obtained formulas , the soliton evolution semi - analytically in various dispersion maps can be investigated . effects of the third order dispersion are also studied in this paper . the results show that imperfect dispersion slope compensation can cause pulse central position shift and even serious degradation of soliton shape 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 |
| 9. | The amplitude fluctuation and according system performance degradation induced by xpm is also studied through numerical simulation . the timing jitter caused by xpm can also have great impact on system performance . by employing lagrangian variational method and statistical method , the timing jitter caused by xpm in strong dispersion managed rz systems is studied in chapter 3 通过仿真也研究了波分复用系统中由于交叉相位调制效应引起的幅度抖动从而导致系统性能的恶化;交叉相位调制引起的时间抖动对系统性能也有较大影响,利用拉格朗日变分方法和统计分析的方法,第三章讨论了强色散管理归零码系统中交叉相位调制引起的时间抖动。 |
| 10. | We transformed the nonlinear equation of the light - wave envelope in lossy dispersion - managed optical fibers and obtained numerical curve of the equation with the use of mathematical software , then the approximate solution was found by fitting of the curve , also the envelope propagation of the quasi - soliton was analysed 摘要对有损耗的色散光纤中光波包络的非线性方程进行变换,借助数学软件得到非线性方程的数值曲线,并通过对曲线的拟合得到方程的近似解,对色散管理类明孤子的传输进行了分析。 |