1.Several options are available for realizing the multi /demultiplexing function, such as the MDTFF (Multiple Dielectric Thin Film Filter), FBG (Fiber Bragg Grating) and AWG (Arrayed Waveguide Grating),etc.
现有的可以实现波分复用功能的器件结构有多种,如多层介质薄膜滤波器(MDTFF: Multiple Dielectric Thin Film Filter),光纤布拉格光栅(FBG: Fiber Bragg Grating),阵列波导光栅(AWG: Arrayed Waveguide Grating)等。
2.Fiber Bragg grating (FBG) is one of the most important fundamentalcomponents in optical communication and optical sensors system.
光纤布喇格光栅(fiber Bragg grating,简称FBG)是光通信和光传感领域的重要基本器件之一。
3.At present, Fiber Bragg Grating (FBG) is one of the most potential and typical optical passive components.
光纤布喇格光栅(Fiber Bragg Grating,FBG)是目前最有发展前途、最具代表性的光纤无源器件之一。
4.Fiber Bragg grating has the characteristics of small dimension, light in weight, approval of integration, resisting of electromagnetic interference, being capable of realizing wavelength encoding, and so on. The performance of FBG excels the fiber sensor of light intensity encoding or phase encoding.
光纤布喇格光栅(FBG,Fiber Bragg Grating)具有体积小、重量轻、可集成、抗电磁干扰,并且能够实现传感信息波长编码等特点,它的性能优于光强编码或相位编码的光纤传感器。
5.By using LabVIEW virtual instrument technique,a wavelength auto-measurement and control system for Sampled Grating DBR(SG-DBR) lasers is developed.
基于LabVIEW虚拟仪器平台,研制了一套可调谐取样光栅分布布拉格反射式(Sampled Grating Distributed Bragg Reflector,SG-DBR)激光器的波长自动测试控制系统。
6.OFBG-FRP bar was pultruded with the fiber strands and optic fiber bragg grating sensor, helically wound fiber strands was introduced to bars to improve the bond properties between OFBG-FRP bar and concrete.
在纤维增强聚合物Fiber Reinforced Polymer(FRP)筋拉挤工艺中,将光纤布拉格光栅Optic FiberBragg Grating(OFBG)传感器与普通纤维束一起经过拉挤模具,为改进FRP筋与混凝土的粘结性能,在FRP筋表面螺旋缠绕纤维束,制备了智能OFBG-FRP筋.
7.The fiber grating that used in fiber grating sensors mainly include Short-Period Fiber Grating(SPFG) and Long-Period Fiber Grating(LPFG). The grating called Short-Period Grating is ordinary equi-period Bragg grating(FBG).
在光纤光栅传感器中所使用的光纤光栅主要是短周期光纤光栅和长周期光纤光栅,我们所说的短周期光纤光栅就是普通的等周期光纤布喇格光栅,短周期光纤光栅由于其良好的传感特性和比较成熟的解调手段,已经在传感领域得到广泛地应用。
8.2 Two theory analysis methods for fiber grating are well introduced, the spectrum prop-erties of uniform fiber Bragg grating、long period grating、chirped grating、apodizedgrating、phase shift grating、superstructure grating are simulated with Matlab soft-ware.
2详细讲述了光纤光栅的两种理论分析方法,耦合模理论和传输矩阵法,并使用Matlab软件对各种不同的光栅器件特性进行模拟计算,包括均匀周期布喇格光栅、长周期光栅、切趾光栅、啁啾光栅、相移光栅和超结构光栅。
9.SPPC grating at 790nm mainly attributes to the charge grating in Ce-ion deep trap while the Fe-ion deep trap contributes more at 532nm wavelength than that at 790nm. SPB-FWM forms the charge grating in Fe-ion deep trap, while TIR-FWM builds up the charge grating in the Ce-ion deep trap.
针对双深陷阱能级的现象，在单deep和shallow-deep模型的基础上，提出了双deep陷阱能级的光折变动力学模型。 利用该模型分析认为：790nm激光泵浦时位相共轭光栅主要依赖Ce离子深能级，而532nm激光泵浦时Fe离子深能级的贡献比在790nm时大。
10.Abstract: Using the ray-tracing method,we demonstrate that a grating-telescope stretcher is the conjugation of a grating pair compressor.We present an analytical formula for calculating the phase dispersions of the grating-telescope stretcher.The computer simulation with the formula demonstrates that there exists an optimal material dispersion for an amplification system,with which we can achieve the largest dispersion-free bandwidth.
文摘:用光线追迹法论证了光栅-球面镜系统与普通的光栅对系统是一对相位共轭元件，并提出了光栅-球面镜系统色散的解析计算公式，以及对一个典型的放大系统做了模拟.模拟结果表明，对于一个放大系统，存在一个最佳的材料色散，用它可以获得最大的无色散带宽.
