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从石英光纤具有的近似线性喇曼增益的特点出发,给出了等信道间隔、等初始输入光子通量条件下前向N信道受激喇曼散射(SRS)稳态光子转换方程的解析解.这个解析解是在考虑了N个信号光之间串话下得到的,它适用于任意大小的信号光.同时指出,在传输过程中,SRS的作用使相邻信道的信号光光子通量保持等比性.公比值随光纤的有效作用距离、总的初始输入光子通量和对应于信道间隔的喇曼增益系数而变化.而总信号光光子通量可表示为N项等比级数.解析解与数值解进行了比较,两者取得了很好的一致
Based on the characteristic of approximate linear Raman gain of quartz fiber, the analytical solution of steady-state photon conversion equation of forward N channel stimulated Raman scattering (SRS) under equal channel spacing and equal initial input photon flux is given. This analytical solution takes into account the crosstalk between N signal lights, which is suitable for any size of signal light.It is also pointed out that in the transmission process, the role of SRS adjacent signal light photon flux to maintain Equal ratio The male ratio varies with the effective distance of the fiber, the total initial input photon flux and the Raman gain coefficient corresponding to the channel spacing, while the total signal photon flux can be expressed as N items of the same order of magnitude. Analytical and numerical solutions are compared, the two have made a very good agreement