光栅周期,Grating period
1)Grating period光栅周期
1.The single beam s coupling efficiency is the key to the combined output power in incoherent fiber laser beam combination system,which is affected by focal length of lens,grating period and light spot radius.单光束耦合效率是决定非相干组束系统输出功率的关键,它受到透镜焦距、光栅周期和光斑半径等参数的影响。
2.Though theoretic analysis and numerical simulations,it has been proved that the precise control of deviation angles of central laser beam and combining beam plays an important role in increasing the diffraction efficiency,higher diffraction efficiency correspond to larger grating period and smaller grating thickness.通过理论分析和数值仿真,结果表明对中心激光入射角偏移及组束光角偏移的精确控制是提高光栅衍射效率的光健,高的衍射效率对应较大的光栅周期和较小的光栅厚度。
3.Through theoretical analysis and numerical simulations,it is proved that the lower lateral off-set,defocusing and lens focus,and the higher grating period would be advantageous,also an optimum spot radius exists which corresponds to a maximum value of coupling efficiency.理论分析及仿真研究结果表明,较小的高斯模场纵向偏移、离焦度和透镜焦距,较大的光栅周期对提高耦合效率是有利的,并且还存在最佳的光斑半径。
2)2-d grating周期光栅
1.Calculation and analysis of2-d grating for long-wavelength GaAs QWIPs;长波GaAs QWIP二维周期光栅的耦合效率研究
英文短句/例句
1.Edge Filter Demodulation of Fiber Bragg Grating Displacement Sensing Using Long Period Grating基于长周期光栅边缘滤波解调的光纤布喇格光栅位移传感研究
2.Long-period Grating in Ti In-diffusion LiNbO_3 Waveguide基于Ti扩散LiNbO_3晶体光波导的长周期光栅
3.Study of Long Period Fiber Gratings and High Order Waveguided Bragg Gratings;长周期光纤栅的研究与波导Bragg光栅初探
4.Research on Sensing Properties of Polymer Long-period Fiber Grating;长周期塑料光纤光栅的传感特性研究
5.Study on Transmission Spectrum of Cascaded Long-period Fiber Gratings级联型长周期光纤光栅传输谱的研究
6.Liquid Sensor of Long Period Fiber Grating基于长周期光纤光栅的液位传感研究
7.Diffraction and imaging characteristic of curved grating with gradually changing periods渐变周期弯曲光栅的衍射和成像特性
8.Analysis of spectral characteristics of uniform fiber Bragg gratings under different exposure conditions不同曝光条件下均匀周期布拉格光纤光栅特性
9.The Research of Sensor and All Optical Switching Based on Long Period Fiber Grating;基于长周期光纤光栅的传感器及全光开关研究
10.Study on Long Period Fiber Grating Fabricated with CO_2 Laser Symmetric Writing Method;CO_2激光对称烧写长周期光纤光栅的研究
11.Numerical Simulation Calculation on Spectrum Properties of Ultra Long Period Fiber Grating超长周期光纤光栅光谱特性的数值模拟
12.2. The characteristics of fiber Bragg gratings and long period fiber gratings have been studied by means of the coupled-mode theory.2.采用耦合模理论分析了均匀周期光纤布喇格光栅和长周期光纤光栅的光谱特性;
13.Research on Bragg and Long-Period Fiber Gratings and Their Sensing Properties布拉格与长周期光纤光栅及其传感特性研究
14.Cladding Mode Field Distribution and Coupling Coefficients in Long Period Fiber Grating长周期光纤光栅包层模场分布及其耦合系数
15.A Novel Method of Edge Filter Linear Demodulation Using Long-Period Grating in Fiber Sensor System一种长周期光纤光栅边沿滤波线性解调新方法
16.Study on the Characteristics and Sensing Applications of Long Period Fiber Gratings;长周期光纤光栅的特性及传感应用研究
17.Study on PDL of Long-Period Fiber Gratings and Methods for Reducing PDL;长周期光纤光栅偏振相关损耗及降低方法研究
18.An Attempt to Fabricate Long Period Fiber Gratings Using Electron Irradiation;电子辐照法制作长周期光纤光栅的尝试
相关短句/例句
2-d grating周期光栅
1.Calculation and analysis of2-d grating for long-wavelength GaAs QWIPs;长波GaAs QWIP二维周期光栅的耦合效率研究
3)chirped gratings变周期光栅
4)long period grating长周期光栅
1.Recent progress on imprinting technologies and applications of photonic crystal fiberlong period gratings;光子晶体光纤长周期光栅制作技术与应用最新进展
2.The transmission spectrum oflong period grating was analized by a combination of coupled mode theory and transfer matrix method.用耦合模方法和传输矩阵法相结合对长周期光栅的传输光谱特性进行了研究， 提出了用相移长周期光栅使双峰的增益谱线平坦化。
3.Theoretical and experimental study on how to packlong period gratings has been made.对于长周期光栅 ,谐振波长阶数越高 ,封装材料折射率对其特性的影响越大 ;封装材料折射率小于包层时 ,随封装材料折射率增大 ,波长减小 ;封装材料折射率大于包层时 ,波长向长波长移动 1。
5)long-period fiber grating长周期光栅
1.Then the progress and values of the research intolong-period fiber grating are discussed.本论文首先综述了光纤光栅的发展、结构、分类及布拉格光栅和长周期光栅研究及其应用情况，进而指出级联长周期光栅的研究现状及研究意义。
6)quasi-periodic grating准周期光栅
延伸阅读
凹面光栅分子式：CAS号：性质：又称罗兰光栅（Rolland grating）。它的作用是使光既衍射又聚焦。因而凹面光栅摄谱仪只需光栅、狭缝及感光板三部分。它可减少吸收现象，只存在光栅面一次反射的光损失，且无色差。可用于远紫外及远红外光谱区域。
