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This leads to Bragg reflection and therefore bands. 这导致了布拉格反射和带结构。
The results show that the lasing wavelength is uncertainly at fiber Bragg reflection wavelength position. 结果表明激射波长并不一定在FBG布拉格反射波长处;
Bragg Reflection Properties of Electrically Controlled Helix Distortion in Cholesteric Liquid Crystals[J]. 引用该论文 Fan Zhixin;Yu Tianchi;Huang Huan;Zhang Heng;Wu Yonghan.
Usually, it is thought that the lasing wavelength of a FGESL is locked at the Bragg reflection wavelength of fiber grating (FG). 由于FGESL的激射波长主要由光纤光栅(FG)的布拉格波长确定，因此选择具有合适布拉格波长的FG就能使FGESL的激射波长处于预置波长处；
A novel tunable distributed Bragg reflection (DBR) laser using metal coated fiber Bragg grating as the external cavity was demonstrated. 报道一种新颖的波长可调谐光纤光栅外腔分布布拉格反射激光器。
The contribution of the network is to establish random anchorage that makes the pitch variety, hence broadening the Bragg reflection spectra. 网络的作用是要在液晶层中建立随机分布的分子锚定机制,使手性液晶的螺距随位置而变化,从而展宽其布拉格反射谱。
Bragg reflection gratings and out-coupling taps for sensors can be written holographically within the core of many commercial fibers available today. 布拉格反射光栅和出耦合头的感应器，可以利用全息写入，这是当今很多商业传感器的核心之一。
Random distribution of sagging structure on the surface of substrate is used to induce random screw axes of the chiral liquid crystal, which not only causes blue shift of Bragg reflection but also further stretches the reflection spectra. 基片表面的凹凸结构用于诱导液晶螺旋轴的斜向随机分布,以利用倾斜螺旋结构布拉格反射的蓝移现象,进一步展宽布拉格反射谱。
Experimental studies on Fabry-Perot cavity fiber lasers(1) The experimental study on a dual-wavelength DBR (distributed Bragg reflection) EDFL (erbium-doped fiber laser) is conducted. Fabry-Perot腔光纤激光器的实验研究(1)对高浓度掺铒光纤DBR双波长激光器进行了实验研究。
We prepared a 2D steel/air system phononic crystal model based on the Bragg reflection mechanism. The crystal lattice constant has the same size as the sound wavelength,and the struc-ture can be modulated in two directions. 基于布拉格反射机理,自行制备了晶格常数同声波波长同数量级的二维钢/空气体系声子晶体结构模型,该模型具有双向可调性。
The determination of composition of Ag film on X-ray diffractometer is presented. The asymmetrical Bragg reflection STD scan mode with the conventional X-ray diffraction CBD mode is used to determine phsae composition and orientation of Ag film. 利用不对称布拉格反射STD(sampletiltingdiffraction)扫描模式与常规CBD(conventionalBraggdiffraction)扫描模式,确定Ag膜的结构及取向。
In this paper, the relation between the structure of the chirped fibre grating and the parameters of the incident femtosecond pulse is described. Numerical calculations show that the chirped fibre grating has a broad Bragg reflection spectrum. 研究了该光栅结构与入射超短脉冲激光脉冲参数的关系 ;数值计算表明该光栅具有较大的Bragg反射带宽 .
In order to study adjustable-bandwidth optical filters, the variation of Bragg reflection bandwidth induced by electric field in cholesteric liquid crystal (CLC) was measured and analyzed. 摘要为了研究带宽可调型光学滤波器，采用对手性液晶膜施加电压的方法，对手性液晶布喇格反射带宽随外加电场的变化规律进行了分析和测量。
The density of the Bragg reflection increases with the increase of height, length, number, spacing and bottom slope of submerged breakwaters as well as the decrease of incident angle. 本文发展不等潜堤间距的复合式系列潜堤，能增加布拉格反射带宽，改进等间距系列潜堤波浪频率受限缺点。
The asymmetrical Bragg reflection STD scan mode with the conventional X-ray diffraction rocking curve was used to determine the lattice distortion of CdZnTe single crystal in this method. 在高分辨X射线衍射仪上,利用不对称布拉格衍射STD技术与单晶摇摆曲线技术相结合的方法,对碲锌镉单晶材料的晶格畸变进行了分析测定。
In order to study adjustable-bandwidth optical filters,the variation of Bragg reflection bandwidth induced by electric field in cholesteric liquid crystal(CLC) was measured and analyzed. 为了研究带宽可调型光学滤波器,采用对手性液晶膜施加电压的方法,对手性液晶布喇格反射带宽随外加电场的变化规律进行了分析和测量。
The modulated vector and the four dimensional index of all Bragg reflections of incommensurately modulated structures were determined. 据此对单晶衍射数据进行了四维空间的指标化。
The key point in FBG sensors lies in precise measurement of minute shift of Bragg reflecting wavelength, that is demodulating the coded signals of wavelength. FBG传感器的关键就在于精确的检测Bragg反射波长的微小移动，即对波长编码信号进行解调。
The key technology of FBG sensing lies in how to measure the minute shift of Bragg reflecting wavelength precisely.And this is called demodulating of the coded wavelength signals. FBG传感器的关键就在于精确的检测Bragg反射波长的微小移动，即对波长编码信号进行解调。