光纤

The method of self-diagnose and self-repair of composite materialusing hollow-center optical fiber to affuse agglutinant in smart structure is described in this paper. The investigation and analysis of pass-light mechanism are also made. Finally the overall arrangement the whole system is analysed

介绍的是在机敏结构中利用空心光纤灌注胶液的方法来进行复合材料损伤、断裂的自诊断、自修复，对空心光纤的传光机理做了具体的研究和分析，运用这些特性对整个系统的总体方案作出了初步的分析。

A high2efficiency coupling system was designed by using t heo ry of optical fiber coupling for t he high2power laser and t he beam t ransform , and in t he system numerical values of lens′apert ure and focus were optimized.

本文针对工业用大功率固体激光的特点，对光纤耦合系统的光束变换，大功率激光聚焦耦合的束宽等影响光纤耦合效率的问题进行了分析。

Finally, six new kind structures of MPOFs are presented and analyzed approximatively using average-index model.

最后，本文在深入了解光子晶体光纤传输特性的基础上，设计了六种不同结构的塑料光子晶体光纤，分别给出其结构参数，并采用等效折射率方法对每种结构进行了近似分析。

The invention discloses a method for preparing novel nanometer TiO2 optical catalyst material, comprising that (1) preparing gel solution of modified lanthanide series that mixing butyl titanate, alcohol solvent, azotic acid, polyvinyl alcohol and lanthanide element,(2) using alkali liquid to treat the quartz fiber leaked from side wall,(3) using drawing membrane and high-temperature sintering to form modified TiO2 optical catalyst material on the surface of quartz fiber.

本发明公开了一种制备新型纳米TiO2光催化材料的方法，包括(1)配置镧系元素改性的溶胶溶液：将钛酸四丁酯、醇类溶剂、硝酸、聚乙烯醇和镧系元素的盐类混合搅拌；(2)利用碱液对侧壁漏光石英光纤进行处理；(3)通过提拉成膜和高温煅烧，在石英光纤表面形成改性TiO2光催化材料。

The major research includes the following three points. First, using finite element method, the influence factors on propagation properties for PMF couplers are analyzed, including the shape of coupler cross-section, the taper of coupler bipyramidal and the angle deviation of the birefringent axes.

基于热-结构-电磁多物理场耦合有限元方法，分析了保偏光纤耦合器的传输特性和耦合系数在熔锥区的变化规律，从而求解耦合模方程，得到偏振光经过耦合器后的光功率分布，继而对保偏光纤耦合器的性能参数分光比、消光比及附加损耗进行理论分析。

A new type of high-birefringence photonic crystal fiber is brought forward, and the method introducing circinal holes with different sizes or elliptical holes which is used to design high-birefringence photonic crystal fiber is replaced by introducing fluorine-doped solid circles.

提出了一种新结构的高双折射光子晶体光纤，通过引入掺氟实心圆的方式形成双折射，而不采用大多数高双折射光子晶体光纤中引入不同孔径空气孔或椭圆空气孔的结构。

Two FBGs are attached radially and circumferentially to a metal diaphragm respectively, and when temperature and pressure change, the peak wavelength of the FBGs will shift.

分别將光纤Bragg光柵沿膜片的径向和环向粘贴在膜片上，当温度发生变化或者膜片受到压力作用时，都会引起光纤Bragg光柵峰值波长偏移。

Based on cost, we find out a scheme which is designed with fiber collimation and fiber piles turning.

所以基于成本上的考虑，本论文提出了利用光纤进行准直及利用光纤排进行光束转向的方案。

Such fiber can be compliable with the standard single mode fiber and be acted as transmission media in the FTTH field. It also can be used to minimize the optical components.

这种光纤在FTTH系统中不仅能与普通G.652光纤完全兼容作为信息传输介质，还可以用在器件上实现器件的小型化。

The results demonstrated that tapered fiber with core more than ?? 400 μm can be used in high-power laser system, while higher output energy and SBS reflectivity can be achieved by using a fiber phase conjugator with optimum taper size and larger fiber length of thinner side.

结果表明，芯径大于400 μm的大尺寸锥度光纤可以应用于高功率激光系统中，如选择较长的后端光纤长度以及适当的锥度区规格可获得较高的受激布里渊散射能量反射率和输出能量。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。