英语翻译RESULTS FOR GE-DOPED QUARTZ LAYERS Fig.1,curves (a),show

英语翻译
RESULTS FOR GE-DOPED QUARTZ LAYERS
Fig.1,curves (a),show typical normalized mode curves for an epitaxial guide.Only the bottom few modes are given here,but a total of 25 were used in the profile calculations.Ideally a plot of mode index squared against order number squared would give a straight line for a square well.Deviation from the straight line for the lower modes indicates a narrowing of the well at its base.This is the case observed here; hence a modified step index is predicted.The slight curve in the line joining the index values of the real modes indicates the deviation from a square well,and the more pronounced curvature near to mode zero suggests considerable narrowing at the very bottom of the well.A pronounced change in the slope of the experimental mode curves (points) can be seen at the substrate index value (O%),and this is reproducible in the calculated mode fits (lines).Note that the experimental data is fitted by the computational prediction for the two wavelengths,and the independent blue and red assess- ments of the index profile are closely similar,as shown in Fig.1,curves (b).In order to emphasize the concept of the confinement of the modes in a refractive index “well”,the figures are plotted with a negative going or- dinate.
The reflectivity model allows the use of either an analytic function for the shape of the index profile or a “free” form as in the WKB method.As a result of several alternative trials,these data were fitted as described above using a combination of an exponentially changing interface and a constant base to the well.This allowed the mode spacing curvature to be matched quite successfully for all but the bottom mode.In order to achieve this mode spacing curvature,a profile with a considerably extended interface tail was required,and this was best modeled by means of a sloping section at the well base.The optimum profiles for the data are given by Fig.1,curves (b) and the theoretical modes of these profiles are located on the smooth curves of Fig.1,curves (a).As can be seen,the large curvature near mode zero requires a considerable slope to the base.

专业还不是很熟悉,有几处把握不是很大,不过已尽力了.
RESULTS FOR GE-DOPED QUARTZ LAYERS
关于掺锗石英层的结果
Fig.1,curves (a),show typical normalized mode curves for an epitaxial guide.Only the bottom few modes are given here,but a total of 25 were used in the profile calculations.Ideally a plot of mode index squared against order number squared would give a straight line for a square well.图1的曲线（a）示出了一种外延生长波导典型的归一化模式曲线.这里只给出了底部的少数模式,但是在分布（剖面）计算中使用了全部25个模式.理想来说,模式折射率平方相对于阶数平方的曲线对于方势阱来说将给出一条直线.Deviation from the straight line for the lower modes indicates a narrowing of the well at its base.This is the case observed here; hence a modified step index is predicted.较低阶模式与直线的偏离表明了该势阱在其基底处的收窄.这是这里观察到的情况；因此预示了改进的阶跃折射率.The slight curve in the line joining the index values of the real modes indicates the deviation from a square well,and the more pronounced curvature near to mode zero suggests considerable narrowing at the very bottom of the well.在结合实际模式折射率值的线段中的细长曲线表明偏离了方势阱,而靠近模式零的明显的曲率提示我们,在势阱的真正底部相当大的收窄.A pronounced change in the slope of the experimental mode curves (points) can be seen at the substrate index value (O%),and this is reproducible in the calculated mode fits (lines).实验模式曲线（点）的斜率的明显变化可以在衬底的折射率值（0％）处看到,而这在计算模式的拟合（线）中是可以再生的.Note that the experimental data is fitted by the computational prediction for the two wavelengths,and the independent blue and red assess- ments of the index profile are closely similar,as shown in Fig.1,curves (b).请注意,实验数据是用两个波长下计算的预测拟合的,而折射率分布独立的蓝色和红色评估非常近似,就像图1的曲线（b）所示的那样.In order to emphasize the concept of the confinement of the modes in a refractive index “well”,the figures are plotted with a negative going ordinate.为了强调模式限制在折射率“势阱”中的概念,这些图用负向的纵坐标来绘制.
The reflectivity model allows the use of either an analytic function for the shape of the index profile or a “free” form as in the WKB method.反射率模型允许采用针对折射率分布形状的解析函数,或者WKB近似法中的“自由”形式.As a result of several alternative trials,these data were fitted as described above using a combination of an exponentially changing interface and a constant base to the well.若干比较实验的结果是,这些数据如上面所述的那样,用指数变化的界面与对势阱恒定的基底相结合进行的拟合.This allowed the mode spacing curvature to be matched quite successfully for all but the bottom mode.这使得模式间隔曲率很成功地几乎与底部模式匹配.In order to achieve this mode spacing curvature,a profile with a considerably extended interface tail was required,and this was best modeled by means of a sloping section at the well base.为了实现这一模式间隔曲率,需要有一个分布,其具有相当扩展的界面尾部,而这用势阱基底的倾斜截面进行了最佳的建模.The optimum profiles for the data are given by Fig.1,curves (b) and the theoretical modes of these profiles are located on the smooth curves of Fig.1,curves (a).数据的最佳分布用图1的曲线（b）给出,这些分布的理论模式位于图1曲线（a）的平滑曲线上.As can be seen,the large curvature near mode zero requires a considerable slope to the base.正如可以看到的那样,靠近模式0处的大的曲率要求与基底相当大的斜率.