光栅

This paper makes use of popular devices in lab for measuring the spectral property of fiber grating. This makes the basic condition for developing the study of fiber grating.

论文研究使用实验室常用仪器来测量光纤光栅的光谱特性，为开展光纤光栅的研究工作创造了基本条件。

In the separating-light system, the concave grating is drove by the step-in electrical machine to separate spectrum signal in the range of visible light.

在分光系统中凹面光栅被步进电机驱动在可见光的范围内将光谱信号分离，由于采用了全息凹面光栅作为分光元件省去了准直，聚焦系统，使本系统结构简单，具有体积小等优点。

This study is to combine two kinds of image stereogram technique. It is a new technique of stereogram using the combination of Single Image Random Dot Stereography technique and lenticular stereoscopic imaging technique named "Single Image Random Dot Lenticular Stereoscopic Imaging".

摘要 本论文研究提出一种结合两种不同的立体成像技术，即将随机点立体成像技术与光栅板立体印刷技术做结合，成为一种新的立体成像技术，我们称之为「随机点光栅板立体印刷成像技术」。

Based on the aberration theory of AWG, a new-type flat-field AWG is designed. The focal signals of all wavelengths of operation are focusing along a straight line perpendicular to the propagation direction. Three stigmatic points restrain three dominant geometry parameters. Furthermore, a new-type flat-field wavelength router with both flat input field and flat focal field is also designed.

基于阵列波导光栅的像差理论，利用三个无像差点约束三个主要结构参量，设计了新型平场聚焦阵列波导光栅，使得所有工作波长的输出信号都聚焦在与光束传输方向垂直的直线上，并进一步将其拓展为同时具有平输入场和平聚焦场的新型平场波长路由器。

The contents including the task principle of main line PIC 、the analysis of hardware、 the principle of light stockade and so on.

内容包括了PCI总线的工作原理，硬件分析，光栅的原理，光栅的硬件组成等问题。

In order to derive the effect of an arbitrary bending curve in tangential orientation on a grating, a general expression about the transform of groove density was represented in theory, and simulated by Finite Element Method using ABAQUS/Standard.

理论上给出了光栅在子午面内弯曲为任意面形后，光栅线密度的变化关系，并采用有限元分析软件ABAQUS/Standard进行了模拟分析。

As the environment parameters change, the codes which are the Bragg wavelengths of the FBGs accordingly change in the same time and in the same location, so as to increase the system capability, realize the measurement of temperature stress and pressure for special engineering (such as oil tank, power station, tunnel) in a way of distributing measurement.

利用编码式光纤光栅的布拉格波长对待测对象的位置和温度、应力、应变等进行编码，当待测对象的环境参量发生变化时，与之对应的编码，即编码式光纤光栅的布拉格波长随之同时同点发生变化，借以提高传感系统的容量，实现对特定对象(如油罐、油气管道、高压变电站等)的温度以及应力、应变等的准分布式定点测量。

In 20~100 ℃, the central wavelength of FBG vary with the temperature has fine linearity. The standard thermojunction temperature sensor and fiber grating temperature sensor are used to do contrast experiment.

通过光纤光栅的温度特性实验，在20~100 ℃的温度范围内，光纤光栅的中心波长随温度变化呈良好的线性，线性度达到99.8%。

While only five slits are shown in the diagram, an actual grating contains several thousand, with a grating spacing d of the order of 0.002 mm. let a train of plane waves be incident normally on the grating from the left.

在图中如果仅有5条缝，(实际上一个实用的光栅包涵几千条狭缝)，并且令 d 为0.002mm，让一相干平面波从左边照射到光栅。

The transmission spectra of fiber Bragg grating in photonic crystal fiber and conventional fiber are compared.

比较了光子晶体光纤中布拉格光栅与常规布拉格光栅的传输谱。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了