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Design of highly precise measurement system of optical fiber attenuation coefficient.

高精度的光纤衰减系数测试系统的设计。

This paper introduces the principal theory , process and test technology of variable optical attenuator.

本文分析了集成化可变光学衰减器的工作原理、工艺制作和测试技术。

Variable optical attenuator is one of the key devices in wavelength-division multiplexing systems.

可变光学衰减器是波分复用系统的关键器件之一。

Fourthly, a detailed process to design and optimize a variable optical attenuator was researched.

然后是详细的介绍了一种非对称的Y分支型光衰减器的设计优化过程。

This paper presents two kinds of optical controlled attenuator and phaser used in millimeter-wave band.

本文介绍了两种光控介质波导衰减器和移相器。

For the thermo-optic effect of polymer, MMI optical attenuator can achieve the objective of variable.

基于聚合物的热光效应，多模干涉衰减器可达到光可变的目的。

In this paper, a polymer waveguide type variable optical attenuator fabricated by molding glass technology is proposed.

在本论文中，我们提出了一个以模造玻璃技术来制作高分子热光式光波导型可变光衰减器。

Through introduction of the digital optical fiber network system,the audio frequency

系统的光纤网络系统、音频控制系统和效果声处理系统的介绍，阐述了其在东方艺术中心建筑中的

Bell also invented the photophone, the ancestor of optical transmission systems; the audiometer, which is still used to test hearing; a device to find icebergs by listening to underwater echoes, the ancestor of SONAR; a desalinating machine for removing salt from seawater; a medical jacket that was the predecessor of the iron lung; the hydrofoil boat; and was part of a team that invented the three-wheel landing gear and wing flaps for airplanes.

贝尔还发明了光电话，光传输系统的原形；听度计，现在还在用于测试听力，通过使用这种装置收听水底回升发现冰山，是SONAR的原形；一种将盐从海水中分离的淡化海水装置；一种医用夹克，是人工呼吸机的前身；水翼艇；贝尔作为研究队伍成员之一还参与发明了飞机三轮起落架和襟翼。

It has been shown that any 3×3 ABCDEF augmented matrix,which describes a misalighed optical system,can be represented by an ordered product of basic matrices of , and types.

Casperson[1] 首先研究了描述轴对称光学系统 2× 2矩阵的分解及系统的合成问题。对于实际光学系统，例如谐振腔，由于安装和调整误差、光学系统工作时外界环境产生的微扰、变形而产生失调。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。