查询词典 fiber-optic

A systemic research on the birefringence of side-hole fiber is presented. The research results show that the birefringence of circular-core side-hole fiber relies mainly on stress birefringence, its fast axis is parallel to the link line of the two holes, and its intrinsic birefringence increases exponentially with the angle and ellipticity of side holes.

本论文的主要研究结果和创新在于： 1、对边孔光纤的双折射特性进行了系统研究，提出圆芯型边孔光纤以应力双折射为主，两边孔连线方向为其快轴方向，其双折射大小与边孔张角和边孔椭圆度成指数关系。

An analysis is made about Descartes rays of transparent round-section fibers——a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.

分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象———笛卡尔线现象。

An analysis is made about Descartes ray s of transparent round-section fibers——a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.

分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象———笛卡尔线现象。

Used for flexible patch cord connection of fiber circuits, provides multi-mode, single-mode, FC, SC, LC, ST and MT-RJ connectors; the adaptor porcelain terminal surface includes PC/UPC/APC; any length can be selected and the number of cores, length, physical structure, etc of patch cord and tail fiber can be independently selected by customers.

用于光纤线路的灵活的跳接，提供多模、单模、FC、SC、LC、ST、MT-RJ等连接头，适配器陶瓷端面类型有PC/UPC/APC，长度任选，跳线及尾纤的芯数、长度、物理结构等也均可由客户自主选择。

Although not technically unrealizable FTTH difficult, but to make FTTH towards success is worth paying attention to the following areas : research and development efforts should focus on the characteristics of new devices and meet FTTH core chip, lowering the cost of optoelectronic devices and passive components; Development of low-cost, easy to install indoor fiber, cable and connector alignment of the construction equipment and tools; Development of high density, easy-to-use fiber patch panel; focus on the development of remote monitoring and management technologies and systems.

FTTH虽然没有技术上不可实现的难点，但要使FTTH走向成功，以下方面值得重视并应集中力量攻关：开发适应FTTH特点的新型器件和核心控制芯片，降低光电器件和无源器件的成本；开发低成本、易安装的室内光纤、光缆和连接器及相配合的施工仪器工具；开发高密度、易操作的光纤配线架；开发集中的远程监视和管理技术及系统等。

Three kinds of nutritional components including protein, crude fiber and crude fiber in the peduncle powder of M.

方法］对辣木梗粉中蛋白质、粗脂肪和粗纤维3种营养成分进行测定。

Ramine fiber was treated with sodium periodate and the weight loss, structure and mechanical properties of ramine fiber under different treating conditions was investigated.

采用高碘酸钠对苎麻纤维进行处理，研究了不同处理条件下苎麻纤维的失重率、结构及力学性能的变化。

The adsorption properties of the function fiber in solution for transition metal ion such as Zn2+,Cd2+,Hg2+etc., were studied and the effects of temperature, concentration, pHon adsorption were also determined. The results showed that the fiber exhibited fairly good adsorption properties, and the adsorption capacities for Zn2+.Cd2+,Hg2+ were up to 196.79mg/g, 275.40mg/g and 6,84.01mg/g respectively.

又研究了该纤维材料在水溶液中对Zn2+、Cd2+、Hg2+等过渡金属离子的吸附性能，测定了温度、起始浓度、PH对吸附性能的影响，结果表明该功能纤维对部分过渡金属二价离子有良好的吸附，对zn2+、Cd2+、Hg2+的吸附量分别为196.79mmg／g、275.40rmmg／g、684.01mmg／g。

Starting from these basic problems, we described the photosensitivity of fiber and writing technology of fiber grating.

论文首先从这些基础性的问题入手，描述了光纤的光敏性和光纤光栅的写入技术，并对光纤光栅的波长敏感特性进行了讨论，利用相位-应变-温度模型分析了光纤Bragg光栅的应变、温度、压力敏感特性。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

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。