Gaussian beam propagation through a parabolic GRIN lens is studied.
本文研究高斯光束经抛物形梯度折射率纤维透镜的传播。
The basic idea of the finite element beam propagation method (FE-BPM) is described.
文中概述了有限元束传播方法的基本思想和方法。
The beam propagation M2 factor is a useful parameter for characterizing laser beam.
光束传输M2因子是表征激光束的有用参量。
A wide Angle beam propagation method (WBPM) applicable to integrated optics is presented.
阐明了一种简单的宽角光束传播法在集成光学中的应用。
Gaussian beam propagation through a kind of parabolic divergent GRIN rod lenses is studied.
本文研究一类抛物型发散梯度折射率棒透镜中高斯光束的传播。
The Microstructure Optical Fiber Bragg Grating(MOFFBG) is simulated using beam propagation method(BPM).
利用光束传播法对微结构光纤布拉格光栅谐振特性进行了模拟研究。
Relaying and spatial filtering on beam propagation are required in order to overcome self-focusing damage.
为了克服自聚焦造成的破坏要求在光束传播中采用中继成像和空间滤波。
The finite difference beam propagation method(FD-BPM)is used to design a device of 66% MMI-converter-Combiners.
采用有限差分波束传输法（FD-BPM）设计了一种66%模式转换、合并器。
The finite difference beam propagation method(FD-BPM) can simulate the performance of the waveguide accurately.
有限差分束传播法则能够准确地模拟波导的性能。
In this thesis we investigate the beam propagation and amphoteric refraction in a Uniaxially anisotropic crystal.
本文在理论上研究了单轴晶体中的光束传输和正负折射现象。
Gaussian beam propagation through complicated optical systems is studied in detail by using matrix optics method.
使用矩阵光学技巧和方法详细研究了高斯光束通过复杂光学系统的传插问题。
The traditional method of numerical simulations for laser beam propagation in the turbulent atmosphere is modified.
对传统的激光大气传输湍流效应的数值计算方法进行了改进。
Only positive Helmholtz equation is considered in beam propagation method, while the negative component is approximately zero.
在光束传输法中只分析前向亥姆霍兹方程，而后向分量近似为零。
Based on beam propagation method, analysis and simulation on optical propagation characteristics of side-polished fiber have been made.
基于有限差分光束传播法，对侧边抛磨光纤的光传输特性进行了模拟计算。
Variational-Effective index method and Finite difference beam propagation method(FD-BPM) are both practicable waveguide simulation tools.
在众多的波导模拟工具中变分有效折射率法和有限差分束传播法都是实用性非常强的。
It would be of important significance to study the laser beam characterization, beam propagation, mode decomposition and beam quality control.
因此，研究部分相干光的传输特性、光束质量和模分解具有重要的理论意义及实用价值。
Then numerical algorithms are used to analyze integrated optical wave-guide and beam propagation method is a good method which is widely used.
于是出现了用数值分析方法来分析集成光波导，其中，光束传播法就是分析光波导器件的一种好方法。
Laser beam characterization, beam propagation and beam quality control are the fundamental research subject in laser optics and laser technology.
激光束的描述、光束传输变换和光束质量控制一直是激光科学技术和激光光学中的重要理论研究工作。
The propagation characteristics of several kinds of laterally tapered transitional waveguides are analyzed using the beam propagation method(BPM).
基于光束传播法，对几种只沿纵向变化的锥形过渡波导的传输特性进行了分析。
Then, the influences of the beam types, beam energy, beam current, initial radius and divergent angle on the beam propagation are discussed briefly.
然后讨论了影响粒子束传输的各种因素，包括粒子束类型、能量、束流、出口初始束半径以及散角等。
The beam propagation between two Gaussian reflectivity mirrors filled with gain medium can be regarded as a complex-order Fourier transform process.
根据这一结论，光束在某些满足一定条件的充满增益或损耗介质的高斯反射镜腔的传输，可以视作连续的复数阶傅立叶变换过程。
Thirdly, the fog attenuation for Gauss beam propagation is discussed, and the computational results are compared with those with plane wave incidence.
对高斯波束在雾中的衰减进行了讨论，并将数值计算结果与平面波结果进行了对比。
The three-dimensional finite-difference beam propagation method was used to compute the optical properties of fiber devices based on side-polished fiber.
本文还用三维有限差分光束传输法计算了侧边抛磨光纤波导的光学特性。
The new definition of the beam propagation factor for partially coherent light is proposed through the propagation equations of the cross-spectral density.
并依据部分相干光的交叉光谱密度的傍轴传输方程，重新定义了普遍的部分相干光的传输因子。
A wide Angle beam propagation method in an oblique coordinate system (OCS wa BPM) based on coordinate transformation is used to simulate optical waveguides.
用坐标变换的倾斜坐标系中的广角光束传播法对光波导进行了分析。
Calculating on practical problems shows that both the finite-difference beam propagation method and the gain character programs can give reasonable results.
实际计算表明，本文所编写的有限差分束传播法和掺铒波导增益特性计算程序，均能给出合理的计算结果。
The wave propagation characteristics of the splitter are numerically simulated by the finite difference beam propagation method and experimentally investigated.
首先用有限差分光束传播法模拟了器件的光波传播特性，然后进行了初步的实验验证。
This kind of beam needs more study on its propagation properties in dispersive media, as well as the beam propagation factor (originally called beam quality factor).
这种光束在色散介质中的传输特性与光束传输因子(即光束质量因子)都值得作深入的研究。
Numerical examples show that FHT is a useful fast algorithm to simulate the beam propagation through a large high power laser amplifier system with cylindrical symmetry.
数值计算例表明，用快速汉克尔变换来模拟柱对称大型高功率激光放大系统中的光传输时，是一种非常有用的、快速的算法。
Since the effects of turbulent atmosphere is prominent, this thesis concentrates on the effects of the turbulent atmosphere on the laser beam propagation in the atmosphere.
大气中的湍流对激光束的影响占突出地位，本文着重研究湍流对大气中传输激光的影响。
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