论文部分内容阅读
假设石英光纤的Raman增益谱为线性谱 ,并给出了拟合直线 .以此为基础 ,得到了前向N信道受激Raman散射稳态耦合波方程的解析解 .这个解析解是在考虑了N个信号光之间串话下得到的 ,它适用于任意功率大小的信号光和任意信道间隔排列的情况 .N个信号光在石英光纤中经过受激Raman散射作用后 ,具有以下特点 :在传输过程中 ,任意两信道的信号光光子通量的比值随光纤的有效互作用长度、总的输入光子通量和两信道频率间隔按指数规律变化 .解析解与数值解进行了比较 ,两者取得了很好的一致 .
Assuming that the Raman gain spectrum of silica fiber is linear spectrum and the fitted line is given, an analytic solution of steady-state coupled wave equation of stimulated Raman scattering for forward N channel is obtained. This analytical solution is considered N signal light between the crosstalk obtained, it is suitable for any power signal size and arbitrary channel spacing arrangement of the N signal light in the quartz fiber after stimulated Raman scattering, has the following characteristics: In the During transmission, the ratio of the signal photon fluxes of any two channels varies exponentially with the effective interaction length of the fiber, the total input photon flux and the two-channel frequency interval, and the analytical solution is compared with the numerical solution, both Made a very good agreement.