Waveguide mode, ASE threold and near-field and far-field distribution are culcalated for a rectangle waveguide model.
利用矩形波导模型求出波导模式、放大自发辐射阈值、放大自发辐射的近场及远场光强分布。
There are many defects in the Gaussian model, which is used to describe the far-field distribution of semiconductor lasers.
半导体激光器远场分布的高斯模型存在着不少缺点。
CCD far-field distribution measurement system with imaging and calibration techniques was established to measure the far-filed distribution along the slow axis of ld.
利用远场成像及标定对比方法，建立了半导体激光器慢轴远场分布的CCD测量系统。
The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
讨论环形孔径高斯光束的远场光斑能量分布，并给出拟合表达式。
In this paper, when assuming a Gaussian near field distribution on the cross section of single-mode fiber, it has been derived theoretically that the far field is also a Gaussian distribution.
本文在假定单模光纤横端面上的近场为高斯分布的前提下，从理论上导出了其远场分布也是高斯分布。
Based on the analysis of the far field intensity distribution, the beam quality of unstable resonators has been studied in detail.
在对远场光强分布分析的基础上，对非稳腔的光束质量作了详细研究。
It is shown that the characteristics of the far field distribution is substantially improved.
结果表明，其远场分布特性均有本质的改进。
It is shown that the beam quality in the far field depends on the initial field distribution, and is degraded with increasing emissive power.
结果表明，远场光束质量与初始场的空间分布有关，且随发射功率增大而变差。
Finally, the space distribution characteristic of scattered far-field pressure was calculated and plotted numerically.
最后对其散射远场声压的空间分布特性进行了数值计算。
In this paper, a new method is presented for the calculation of surface current distribution and far region radiation field of the short backfire antenna.
本文提出一种用于分析和计算短背射天线表面电流分布和远区辐射场的方法。
The far-field irradiance distribution of a Gaussian beam which is transmitted from telescope with certain center obscure is researched in this paper.
讨论了环形孔径高斯光束的远场光斑能量分布，并给出了拟合表达式。
It has been theoretically derived that the far field is also a Gaussian distribution provided that the near field on the output end face of single mode fiber is Gaussian distribution.
本文在假定单模光纤横端面上的近场为高斯分布的前提下，从理论上导出了其远场分布也是高斯分布。
By the system, far-field beams space distribution, pulse waveform and center energy information can be attained simultaneity for the first time.
首次将远场激光束的空间分布、脉冲波形和中心能量测试纳入到一个体系中。
The influences of epaxial light intensity and energy distribution in far field caused by steady-state thermal blooming with wind are calculated and analysed.
采用数值模拟的方法，研究了强激光在大气传输过程中产生的稳态热晕效应。
The far-field intensity distribution of in-phase mode is calculated for the beam numbers of 5.9and 19, respectively.
对发光单元数目分别为5、9、19列阵的同相模的远场光强分布进行了计算。
The far-field intensity distribution of in-phase mode is calculated for the beam numbers of 5.9and 19, respectively.
对发光单元数目分别为5、9、19列阵的同相模的远场光强分布进行了计算。
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