查询词典 optical fiber

Based on the relation between modal amplitude and phase in the mode conversion of the few mode fiber, a novel configuration of an asymmetric biconical fiber and a fiber mode converter is presented to realize the nonreciprocal propagation in optical fibers. Preliminary feasibility is demonstrated both theoretically and experimentally.

基于少模光纤中模式转换的振幅和相位关系，提出采用不对称双锥光纤与光纤模式转换器的组合结构实现光纤中非互易传输的技术构思，从理论和实验上进行了初步的可行性论证。

Taking the fiber coupler as represent, aiming at the performanceproblem of the fiber coupler which is used in the market, such as theoptical performance differences of accepted products, technologicaloptimization and stability reflected by the low rate of finished products,how to reduce excess loss, and so on. From the view of manufacture of rheological formation, the research of experiment and theory has beendeveloped. The effects of rheological technological parameters such asdrawing speed and fused temperature on the optical performance,microstructure and the process of rheological formation have beeninvestigated. It is discovered that the present heating mode of combustinggas can\'t satisfy with the rheological manufacturing technological needof high performance fiber devices. A new resistance heating system is putforward, designed and manufactured, and a new fused biconical tapermachine is developed.

论文以光纤耦合器为代表，针对目前市场上广为应用的光纤器件存在的性能问题，如合格产品的光学性能差异，成品率不高所反映的制备工艺优化与稳定问题，如何进一步降低附加损耗等，从光纤耦合器流变成形制造的角度，分析了流变制造工艺参数如拉锥速度与熔融温度及其扰动对流变制造成形过程、微观结构与器件光学性能的影响，发现现有燃烧气体火焰的加热方式不能满足高性能光纤器件的流变制造技术要求，提出、设计并制造了一种新型的电阻加热系统和熔融拉锥机。

Based on the server-based optical network architecture, the dual fiber link and IP calking for Optical Burst Switching are proposed to abate the restriction of optical devices.

由此提出了双光纤链路与IP插空联合的光突发交换解决方案，以缓解光子器件瓶颈的限制。

Therefore, we utilize optical switch to switch over two routes P1 and P2 which are normal feeder fiber P1 and protecting fiber P2. Signal pass P1 and P2 and through 2X2 coupler, splitter, and 2X1 coupler into the drop fiber. Finally pass through WDM coupler and filter into ONU.

传输时利用光开关切换成两路路径P1和P2，分别为在正常下的P1馈线光纤和发生错误时切换成P2保护光纤，再经2X2耦合器、分歧器和2X1耦合器，进入终端光纤，最后经分波多工耦合器和滤波器后进入光网路单元。

As the emission spectrum of Erbium ions covers 1550nm, which is the low loss window in fiber optic communication, the study on EDFA and fiber laser is crucial for the development of technology of fiber optical communication.

由于铒离子的发射谱覆盖了1550nm的光纤通信低损耗窗口，因此对掺铒光纤放大器及激光器的研究将对光纤通信技术的发展起着举足轻重的作用。

At last the structure tolerance of the expand core fiber is studied. And then the optical coupling efficiency imposed by the position of Gaussian beam on the grating is discussed by comparing the Gaussian beam output from expand core fiber, single mode fiber and free space Gaussian beam with waist radius of 16 microns.

最后分析了扩束光纤的结构容差，并讨论了所设计扩束光纤的输出光束、单模光纤的输出光束以及束腰半径为16 μm的自由空间高斯光束各自在光栅表面的位置变化对光栅耦合效率的影响。

On the basis of the analysis of the DBS signals and the principle of the optical receiver and in light of the application features of fiber-optic broadband access networks, a 3 GHz analog optical receiver with fairly high sensibility and large dynamic range has been designed and developed for the optical broadband satellite TV signals.

通过对直播卫星下行信号和光接收机原理的分析，针对光纤宽带接入网的应用特点，设计并研制开发出了一款达到3GHz带宽，用于接收宽带卫星电视光传输信号，具有较高灵敏度和较大动态范围的模拟光接收机。

Optical time-domain reflectometry located the regions where optical attenuation occurred due to leakage; optical power meter acquired the transmitted power at the end of fiber, and these events could be identified according to the characteristics of signals.

在光入射端，用光时域反射计对上述事件引发的损耗进行定位；在光输出端，用光功率计检测光功率的变化，并根据信号特徵来判定事件的类型。

In the process of heating, reversing optical panel, the length of fiber almost proportional increased with distance from fiber to center of the plate; at the same time, the shape of fiber changed from cylindrical fibers to cone-shaped fiber that the diameter is change with the length.

光纤倒像器毛坯在这一加热、扭转过程中，纤维长度随着纤维到面板中心的距离近乎成比例增加；同时纤维的形状也由原来的柱形纤维变成直径随长度变化的锥形纤维。

The company's main products: fiber optic connectors, adapters, attenuators, couplers and other passive components; fiber optic cable connector boxes,cable, fiber optic distribution frame, fiber optic wiring products such as the transfer box; Optical Power Meter and other communication equipment.

公司的主导产品：光纤连接器、适配器、衰减器、耦合器等无源器件；光缆接头盒、光缆终端盒、光纤配线架、光缆交接箱等配线产品；光功率计等通信仪器。

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。