optical index

The analytic results on system CNR ( Carrier-Noise-Rate) and the computer simulation show that the system CNR can be improved greatly by utilizing the wavelength controlling and increasing the optical modulation index.

仿真结果表明，通过实施波长控制技术和增加光调制指数等措施，可以有效提高系统载噪比。

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Sensing Characteristic of Optical Fiber Refractive Index Sensor Based on Core Diameter Mismatch

纤芯失配型光纤传感器折射率敏感特性

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A numerical model of atmospheric optical refractive index structure parameter is presented.

提出了一种大气光学折射率结构常数的数值模式。

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In this paper the measurement method for the pressure coefficient of optical glass refraction index is offered.

本文给出了光学玻璃折射率压力系数的测量方法。

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The Measurement Method for the Pressure Coefficient of Optical Glass Refraction Index

光学玻璃折射率压力系数测定方法

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An estimation method for effective optical index for 2 D symmetric structures was given.

给出了二维对称的抗反射浮雕结构等效光学参数的估算方法。

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The optical refractive index and extinction coefficient were derived by simultaneously fitting the transmittance and reflectance spectra in the wavelength region of 2~ 12.5 μ m.

通过拟合2～12.5μm波长范围的反射和透射光谱，得出了薄膜在此区间的折射率和消光系数。

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Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.

一定的传输距离和发射光功率情况下，不同的子载波数存在一个最佳的光调制指数，使得系统载噪比最大；

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Sensitivity analysis on numerical model of atmospheric optical refractive index structure parameter

一维大气边界层光学折射率结构常数数值模式的敏感性分析

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The Measurement of Optical Nonlinear Refraction Index of ( Na_0.5Bi_0.5) TiO_3 Thin Films Using a Z-scan Technique

Z-扫描技术测量（Na（0.5）Bi（0.5））TiO3薄膜非线性折射率

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Based on the measurement method on optical film refractive index and thickness, commonly used in the world, a method which derived from variable angle spectroscopic ellipsometry is used to set the primary standard of optical film refractive index and thickness for national defense.

论文在综合了国际上光学薄膜折射率和厚度不同测试方法的基础上，采用可变角椭圆偏振法来实现和建立国防系统的光学薄膜折射率和厚度最高标准。

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Measurement of the Imaginary Part of Metal Optical Index by Laser Diffraction

金属折射率虚部的激光衍射测量方法

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The third-order optical nonlinearity has not linear relationship with the linear refraction index n.

玻璃的超快三阶光学非线性与线性折射率n之间不呈线性关系；

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The results show that there is little influence on particle size for optical index of silt.

结果表明，粉土光学系数的选择对其影响不大；

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Bone X-ray films of 80 cases were examined by spectrophotometer, the results showed that the optical density index was consistent with the stage classification of the bone X-ray and the amount of fluorine in the bone tissue.

本文用光密度仪测定80例氟骨症骨X线片，发现骨光密度指数与氟骨症骨X片分期一致，随骨质增生，骨X线片光密度指数增加；

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To study the relationship of microwave vegetation penetration index MVI and optical vegetation index NDVI

微波穿透指数MVI与光学植被指数NDVI的关系探讨

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The coupled way with globular lens in end side of step index fiber ( SIF) is a simple and practical method to increase the coupling efficiency between semiconductor optical resource and SIF.

采用光纤端面球透镜耦合方式，是提高半导体光源与阶跃折射率光纤之间耦合效率的简单实用的方法。

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A standard measuring apparatus of optical fiber refractive index profiles and geometric parameters has been established in NIM.

介绍了中国计量科学研究院建立的光纤折射率分布和几何参数标准测量装置。

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Refracted near-field technique for the measurement of optical fiber refractive index profiles

光纤折射率剖面的折射近场法测量的研究

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The optical properties ( refractive index, third-order nonlinearity et al) of glass samples were investigated.

测试了系列玻璃样品的密度、线性折射率以及三阶非线性等光学性能。

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Ellipse cylindroid optical waveguides of index according to periodic change along the Z axis

折射率沿轴向呈周期变化椭园柱状光波导

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Standard Apparatus of NIM for Measurements of Optical Fiber Refractive Index Profiles and Geometric Parameters

光纤折射率分布和几何参数标准测量装置的研究

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Focusing method for nondestructive measurement of optical fiber and preform index profile

聚焦法非破坏性测试光纤和预制棒的折射率分布

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Optical pumping of solid-state lasers will induce axial thermal elongation and radial gradient of refractive index in the laser rod, which may be summarized as an effect of thermal thick lens.

光泵固体激光器会在激光棒中引起轴向热伸长和径向折射率梯度。

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A Study of Improving Homogenity of Optical Glass Refractive Index

提高光学玻璃折射率一致性的研究

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Modal field distributions and relations between optical power and modal index are given.

论文给出了模场分布和光功率与模折射率的关系。

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Calculation of the optical characteristics of mode index lens

模折射率透镜光学特性的计算分析

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Design of the Optical Modulation Index for External Modulator

外调制器光调制指数的设计

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The photonic crystal fiber of optical refractive index type and optical band-gap type are described respectively.

并且分类介绍了折射率导光和带隙型导光的光子晶体光纤。

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Atmospheric Structure Parameter C_n~ 2 in the Boundary Layer of Hefei Experiment verification of numerical model of atmospheric optical refractive index structure parameter

合肥近地面折射率结构常数C n~2分布特征及分析一维大气边界层光学折射率结构常数数值模式的实验检验

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