实验结果表明其有效折射率的测量值与理论值相符。
Experimental results show that the measured values of effective, refractive indices agree with the theoretical ones.
本文同时研究分析了康托结构中的零有效折射率带隙。
We also investigate and analyzed the property of the zero-band gap of the cantor structure.
结果表明，有效折射率法有方法简明、结论确切的优点。
Results show that the method possesses the advantages of simplicity and exactness.
用棱镜耦合法测得了该薄膜的有效折射率为2。 0452。
The effective refractive index is 2.0452, which was measured by prism coupler method.
通过计算结构的有效折射率，证实了杂质带色散是正常色散。
After calculating the effective refractive index of the structure, we have verified that the impurity band has a normal dispersion.
与全矢量解相比，其带给有效折射率的误差仅约10 -5。
Compared to fully vectorial solution, it brings an error to effective index of only about 10 ~ (-5).
依据有效折射率的不同，部分带隙中的空气-导模将以不同的形式存在。
For different values of the effective refractive index, the air-guided modes can exist in different forms in part of PBGs.
通过对实验结果的拟合，推算出不同相对湿度环境下，多孔硅薄膜的有效折射率值。
By data fitting of the experimental results; the effective refractive index changes under different humidity conditions can be reckoned.
在众多的波导模拟工具中变分有效折射率法和有限差分束传播法都是实用性非常强的。
Variational-Effective index method and Finite difference beam propagation method(FD-BPM) are both practicable waveguide simulation tools.
利用改进的有效折射率法，设计了一种能得到高效率的参量放大的色散平坦微结构光纤。
By way of using improved effective index method, we have designed a dispersion-flattened microstructure fiber to get high efficiency optical parametric amplification.
给出了利用渐近解公式，由模有效折射率的测量值确定波导表面折射率和扩散深度的方法。
A method is given for determining the parameters of a diffused waveguide from the observable values of mode efficient index by using the asymptotic solution equations.
利用棱镜耦合法测得了该薄膜中每条模所对应的有效折射率为2.0044和1.7098。
The effective index refractive of every mode is 2.0044, 1.7098, measured by prism coupler method.
基于标量近似理论，使用有效折射率方法对光子晶体光纤的群速度色散特性进行了详尽研究。
Based on a scalar approximation, the group-velocity-dispersion properties of photonic crystal fiber (PCF) were investigated in detail by equivalent-index model.
从导波的射线理论出发，导出了波导单模条件，运用有效折射率法完成了单模波导的优化设计。
Starting with waveguide ray theory, the condition for single-mode waveguide is derived, and design of single-mode strip waveguide is accomplished with effective index method.
研究发现包层膜有效折射率、直流耦合系数及奇数阶次的交流耦合系数都随着波长的增加而减小。
It is revealed that the effective refractive index and the DC coupling coefficient, as well as the ac coupling coefficient of odd order modes, will be decreased with the increase in wavelengths.
推导出纤芯、包层、薄膜层、环境层的场分布表达式，利用数值计算求出了包层膜的有效折射率。
Resolve dispersion equation and obtain the effective refractive index of cladding using method of numerical calculation.
测量了拉制成的有孔光纤的数值孔径和归一化频率等传输参数，并基于有效折射率方法与理论值进行了比较。
Transmission parameters such as numerical aperture and normalized frequency of the fabricated holey fibers have been measured and compared with theoretical values based on effective index method.
本文用适当的多项式函数近似扩散光波导的高斯折射率分布函数，推导了导模有效折射率的解析形式渐近解。
The Gaussian index profile of a diffused optical waveguide is approximated by an appropriate polynomial, and the asymptotic solutions of the mode efficient index is derived in a analytical form.
变分有效折射率法是变分法（VM）和有效折射率法（EIM）的结合，它能够很精确地模拟光场分布情况；
The Variational-Effective index method is based on mixing the variational method(VM) and the effective index method(EIM), it can be used with very accuracy to simulate the field distribution.
基于标量近似理论利用有效折射率方法对低空气填充率的光子晶体光纤(PCF)的色散特性进行了数值模拟。
Basing on scalar approximation the dispersion property of photonic crystal fibers (PCF) with lower air filling fraction are investigated by an effective index approach in this paper.
提出了光子晶体光纤色散的矢量有效折射率计算方法，并结合归一化色散的概念研究了光子晶体光纤的色散特性。
A fully vectorial effective index method is proposed and used to study the dispersion properties of photonic crystal fibers in combination with the concept of normalized dispersion.
通过计算发现，随着中间电极角度和地电极角度增加，有效折射率、特征阻抗同时减小，导体损耗系数也随之减小。
The calculation results have shown that when the angles of the center electrode and the grounds decrease, the effective index, the characteristic impedance, and the conductor loss all decrease.
借助于m线技术测量了有效折射率，并利用逆wkb法计算了波导的折射率分布、扩散深度和扩散系数，发现其扩散性质差异。
Effective refractive indices were measured by m-line technique. The refractive indices distribution, diffusive depth and diffusivity coefficients have been calculated using inverse WKB method.
当非均匀应变场作用在光纤布拉格光栅（FBG）上时，由于FBG周期和有效折射率在沿FBG长度方向都为变量，所以会导致光谱形状的变化。
The spectrum of fiber Bragg grating(FBG) in inhomogeneous strain fields is distorted due to its inhomogeneity of both the periods and the effective refractive index.
本文讨论了一种任意折射率分布光纤的有效的数值分析方法。
An efficient numerical method for the optical fiber with an arbitrary index distribution is given in this paper.
研究结果表明：具有复合形状的折射率和掺杂离子分布可以有效提高弯曲条件下大模面积增益介质光纤的性能。
The results indicate that a hybrid profile of RI and dopant is the best choice for LMA fiber with coiling.
研究结果表明：具有复合形状的折射率和掺杂离子分布可以有效提高弯曲条件下大模面积增益介质光纤的性能。
The results indicate that a hybrid profile of RI and dopant is the best choice for LMA fiber with coiling.
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