芯径

实验表明，该微型光纤光谱仪的波长准确度小于1nm，在采用芯径为50μm的多模光纤时，光谱带宽可以达到1.31nm。

From the testing result , the wavelength accuracy of the micro fiber spectrometer is smaller than 1 nm . When the core diameter of fiber is 50 μ m , the spectrum band width can reach 1.31 nm .

Trommer的结果，提出了单模光纤在芯径，相对折射率差偏离标准设计值时色散系数谱的简化计算方法。

Trommer is extended , and simplified calculation for the dispersion coefficient of single-mode fibres is presented on condition that the core diameter and the relative refractive-index difference deviate from the ideal values designed .

第五章提出了利用热扩展芯径光纤（ThermallyExpandedCoreFiber）实现高亮度激光器的方法，并进行了理论仿真。

In the fifth chapter , a novel technique using Thermally Expanded Core Fiber ( TEC Fiber ) to get high brightness laser has been discussed theoretically .

第二章，从特征方程出发，求解了大芯径、大数值孔径（典型值：直径980微米，NA为0.5左右）聚合物光纤的所有传导模式。

In the second chapter , by analyzing fiber mode equations , all transmission modes of POF with large diameter and large numerical aperture have been resolved successfully .

对用小芯径单模光纤制作1.55μm和1.31μm光波长DWDM耦合器的技术参数作了具体计算和讨论。

Detailed calculation has been done by using the technical parameters of 1.55 μ m and 1.31 μ m optical wavelength in DWDM coupler which is made of small radius fiber .

将此激光束耦合入芯径为100μm的多模石英光纤中，观察到由背向受激布里渊散射（SBS）引起的位相共轭现象。

When this laser beam was coupled into a multi-mode quartz fiber with diameter of 100 μ m , a phase conjugated beam caused by backwards Stimulated Brillouin Scattering ( SBS ) could be observed .

当包层对芯径面积之比小于某一特定值时，对于反向泵浦，ASE+输出功率大于ASE-输出功率。这些特点显示了小信号放大时ASE与大信号放大时ASE所存在的差异。

When the ratio of cladding to core area is less than a specific value , the output power of ASE + is larger than that of ASE - for backward pumping .

实验中采用泵浦功率为20W的半导体激光器泵浦Nd：YAG激光器，光纤芯径400微米，得到最佳耦合系数为0.85。

The practical example is a Nd : YAG laser pumped by a 20W fiber-coupled laser diode with 400 μ m fiber diameter .

本文介绍利用现有MCVD工艺制备大芯径、大数值孔径光纤预制棒的新工艺。

This paper presents the new technique for preparing the fiber preforms with large core and large N A by the conventional MCVD process .

不同入射角激光束在大芯径SI-PDF光纤中的传输损耗

Transmission attenuation of laser beams with different incident angles in large-core SI-PDF optical fibers

采用芯径为100μm、长2m的无掺杂多模阶跃石英光纤，在1.06μm波段，研究了不同焦距下，光纤与耦合透镜间的距离以及泵浦能量对反射率和波形的影响。

Based on the pure step quartz fiber with radius of 100 μ m and the length of 2m , the influence of the distance between the fiber and couple lens and pump energy on reflectivity and waveform at 1.06 μ m is studied .

对0.6mm芯径3m长光纤输出100W连续Nd：YAG激光的光纤耦合效率进行了实验分析。

The experimental analysis of the coupling efficiency of an optical fiber from three meters long of 0 6 mm optical fiber wick diameter with output 100 W CW Nd : YAG laser .

为了降低以（U、Pu、Np、Am、Cm）O2为燃料的加速器驱动次临界快堆（ADSFR）堆芯径的功率峰因子，将堆芯精细地分为燃料高、低富集度区。

Refined allocations of the assemblies to high - and low - enrichment zones were used to reduce the power peaking factors of the Accelerator-Driven Sub-critical Fast Reactor ( ADSFR ) loaded with ( U , Pu , Np , Am , Cm ) O_2 fuel elements .

文中指出，传感器中光纤可以选用200μm左右大芯径光纤，膜片直径可以选2～3mm，光纤端面与膜片初始距离可选2mm左右。

The diameter of fiber can be chosen around 200 μ m. The diaphragm diameter can be chosen as 2 ~ 3 mm . The initial distance between the fiber terminal and the diaphragm are around 2 mm .

另外，介绍了塑料光纤POF，与传统的石英玻璃光纤相比，POF具有制造简单、芯径大、连接方便等优点，受到人们的青睐。

In addition the plastic optical fiber POF is introduced , compared with traditional quartz glass optic fiber , POF possesses some advantages of making simple , the big diameter of fiber core and the convenient connection etc. It finds favor in people ′ s eyes .

然后，采用数值仿真的方法系统地研究了多模光纤参数（包括光纤对轴间距、光纤芯径和光纤数值孔径）、反射面倾斜因子以及形状因子对RIM-FOS强度调制特性的影响规律。

Then , the numerical simulation is fulfilled , along with a series of rules of the influence on intensity modulation property caused by multimode fiber parameters , the factors of reflector shape and inclination .

半导体激光器与变芯径光纤耦合技术的研究

Study on the Technology of Coupling Laser Diode to Graded-core Fiber

大芯径石英光纤中皮秒脉冲激光的自聚焦

Self-focusing of picosecond pulses in large - core optical fibers

基于变芯径光纤的光学系统在光造型中的应用

Application of Optical Subsystem Based on Tapered Optical Fiber in Stereolithography Apparatus

小芯径空芯传能光纤的理论分析

Analysis on Small Bore Hollow Fibers for Transmitting Laser Energy

大芯径光纤整形飞秒激光脉冲空间分布的研究

Spatial Shaping of Femtosecond Laser Pulse in Large-core Optical Fiber

布拉格光纤光栅等效芯径和折射率的测量

Determination of the Core Diameter and Refractive Index of the Fiber Bragg Gratings

芯径渐缩光纤对孤子传输的影响

Effect on soliton propagation in core radium decreasing fiber

百微米芯径光纤激光器及其模式控制技术研究

Hundred-Micron Core Diameter Fiber Laser and Its Mode Control

大芯径多模石英光纤端面耦合技术研究

End Coupling of Large Core Multimode Optical Fibers

大芯径石英阶跃光纤光谱损耗测量研究

Measurement of spectrum loss of large-core optical fiber

大芯径大数值孔径阶跃光纤传导模特征方程求解

Propagation Constant Solution for Large Core and High Numerical Aperture Step-Index Multimode Optical Fiber

大芯径功率光纤中传输的激光束质量与偏振度研究

Study of the Laser Beam Quality and Polarization Degree in Large-Core Optical Power Fiber

芯径渐缩光纤中的过渡模

Transition Mode in Core Radius Decreasing Fiber

一种大芯径束管式非金属铠装光缆

A New Kind of Non Metal Armoured Optical Cable with a Big Loose Tube Diameter