查询词典 reflection grating

Theoretical studies on transmission characteristics of fiber grating Fabry-Pérot cavity.

光纤光栅法布里-珀罗腔透射特性的理论研究。

As the condition of Gaussian approximation for the spectral distribution of input optical signal,the expression of transmission efficiency of arrayed waveguide grating comb bandpass filter is recommended.

在输入信号光谱分布高斯近似条件下，给出了阵列波导光栅梳状带通滤波器信号通道传输效率的计算表达式和输入信号光谱宽度对阵列波导光栅梳状带通滤波器信号通道输出特性的影响。

In the thesis, we mainly studied theoretically and experimentally the nonlinear transmission properties, photo-induced grating, degenerate multi-wave mixing in bR film and their applications.

本论文从理论和实验两方面深入地研究了bR膜中的非线性透射特性、光致光栅、简并多波耦合及其应用等问题。

A transmission grating with an area of 1 mm × 1 mm, a pitch of 300 nm, and a gold thickness of 1 μm for X-ray imaging and microscopy is successfully fabricated by combining electron beam lithography, X-ray lithography, and electroplating.

利用电子束光刻、X射线光刻和微电镀技术，成功制作了面积为1 mm×1 mm，周期为300 nm，金吸收体厚度为1 μm的用于X射线显微成像的透射光栅。

Higher order contributions in the spectral radiation standard and metrology beamline were researched using transmission grating and IRD AXUV100G photodiode detector.

采用自制的840/mm金膜自支撑透射光栅和美国IRD公司的AXUV100G光电二极管探测器，定量研究了光谱辐射标准和计量光束线在5-140 nm波段的高次谐波。

Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.

论文首先从波动方程入手，对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究；较系统地介绍了光纤光栅的耦合模理论，并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性；重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作；较系统介绍了EDFA的基本理论，计算出各种条件下EDFA的光学特性，并进行了一些实验研究；综合分析光纤放大器对光纤传输系统的影响，特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法，并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用；结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案，对光纤用户接入网的若干问题进行了理论与初步的实验研究。

Study on transversal strain on fiber Bragg grating .

光纤光栅多点传感的理论和实验研究。

This paper puts forward a kind of calibration method for triangulation based on non-diffracting grating .

提出了一种基于无衍射光栅的三角测量的定标方法。

Two SPR sensing devices have been designed and assembled with tungsten iodide lamp, prism, grating and charge coupled device, and resonance wavelength shifts were monitored as resonance signal.

自行设计组装了两台SPR传感装置，以碘钨灯为光源，棱镜为耦合元件，光栅为分光元件，线阵电荷耦合器件为检测器，共振波长为检测信号。

The sensing and the testing on the pressure in a state of the fiber Bragg grating bend strain were realized, and the effect of using overall affix and two-spot affix between the FBG and underlay on the characteristics of the pressure sensing was compared both experimentally and theoretically.

针对光纤布喇格光栅发生弯曲应变实现压力传感检测的实际情况，对FBG与衬底材料全粘附和两点粘附耦合对压力传感特性影响进行了对比实验研究。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。