光波导的自洽场计算Ⅱ.通道光波导

Self Consistant Field Calculation of Light Waveguide ⅠⅠ. Channel Optical Waveguide

用自洽场（ＳＣＦ）法求通道光波导问题的解，得到了有１０位有效数字的传播常数。证明从精度上和机时上，自洽场法都远较有限元法（ＦＥＭ）优越，应该在高级的光波导设计中得到应用。

Using the self consistant field (SCF) method, the channel light waveguide problem was solved and the propagation constants with 10 significant figures were obtained. It proves that a simple SCF method for this problem is superior very much to the finite element method (FEM) and the others, both in acurracy and in caculating time, and that it should be used in the advanced light waveguide design. Moreover, the causes why the SCF method can reach high accuracy and the FEM can′ t be improved ultimately are discussed in detail.