光纤

Demultiplexer is one of the key electronic components in optic-fiber transmission systems.

分接器是光纤通信网中的关键器件。

The effects of group velocity dispersion on nonlinear optical loop mirror OTDM demultiplexer are analyzed theoretically and numerically in this paper.

本文就群速度色散对非线性光纤环镜型OTDM解复用器的影响进行了理论与数值分析。

This paper describes the paraxial analysis of the demultiplexer based on GRIN rod lens and diffractiongrating for the single mode system.

对渐变折射率棒透镜和衍射光栅构成的单模光纤分波器的近轴分析，得到了分波方程。

As a result, the complete depolarization of the light signal can be realized efficiently and the stability of the system with the depolarizer achieves 1.72%.

光纤系统增加退偏器后输出稳定性达到了1.72%，大大提高了系统输出的稳定性。

Analysis of lyot optical fiber depolarizer by mueller matrix.

张靖华。 Lyot型光纤消偏器的Mueller矩阵分析。

Depolarizer can be used to reducepolarization-dependent damage and thus polarization-related problems can be solvedin optical fiber communication systems, measuring instrument and optical fibersensor. PMD emulator is used to mimic PMD behavior of real optical fibertransmission systems, and it is one of the key technologies for solving PMDproblems.

消偏器可以有效地消除偏振损害，解决光纤通信系统、测量仪器及传感器中的偏振相关问题；PMD模拟器用以模拟实际光纤的PMD现象，是解决PMD问题的关键技术之一。

The following are main points in the thesis.(1) On the basis of widely researching of the domestic and overseas references, there are four types of depolarizers being summed up and introduced in this thesis, the four types are spatial averaging depolarizer, time averaging depolarizer, fiber ring depolarizer and spectral averaging depolarizer.

本论文主要完成的工作是：(1)在查阅了大量的文献的基础上，总结了四种类型的退偏器，空间偏振态平均退偏器、时域平均退偏器、光纤环退偏器、光谱平均退偏器，并分别对四种类型的退偏器的工作原理进行了深入的研究，为每种退偏器的设计方法建立了数学模型。

A similar block diagram description could apply to an Indian on a hill sending smoke signals back to his tribe a fiber optic gas detection system, a telescope, or, as we will see as we go on, practically any optical system we can devise.

类似的框图描述能适用于印度对一宗山火，发送烟雾信号回到他的部落光纤气体侦测系统，望远镜，或者，如我们将看到我们下去，几乎所有的光学系统，我们可以制定。

In the experiment, three kinds of solution which contain glycerol, sucrose and potassium dichromate are preparation.

第三部分，建立基于2×2熔锥型光纤耦合器的溶液浓度传感测量实验系统。

Here, we design a new structure utilizing single layer dielectric subwavelength grating for polarization beam splitting around wavelength of 1.55μm. It also has potential in fiber communication or hybrid optical elements.

因此在本论文中提出一种新的设计，可以利用简单的单层次波长介电质光栅来实现不错的分光效率，具有在光纤通讯波长(1.55μm)上极化分光的效果以及制作复合型光学元件的潜力。

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。