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。
In the paper, the threshold, light output, mode, modulation, polarization, far field characteristics and thermal resistance effects are analyzed and generalized.
本文分析总结了垂直腔面发射激光器的阈值特性、光输出特性、模式特性、调制特性、偏振特性、远场特性以及热阻效应。
The mode of propagation contains near field and far field.
传播方式分近场和远场；
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。
Therefore, measurement of mode field diameter of single mode fibers by far-field mask is realized.
实现了用远场掩模法对单模光纤模场直径的测量。
The far-field radiation pattern of the open-end rectangular waveguide was measured and the complex coefficients of each mode were determined by this method.
这种方法先根据波导口尺寸利用惠更斯原理计算出各模式的辐射场的分布；
The identification of mode compositions of gyrotron output power is discussed by using far-field radiation pattern analysis.
讨论从测量远场辐射花样入手来鉴别回旋管的输出成份问题。
The output characteristics of the ASE amplifier are experimentally studied. The ASE far-field patterns for the lowest waveguide mode are obtained in agreement with theroy.
实验获得放大自发辐射的远场光斑图样与理论计算比较基本一致，并对放大自发辐射输出特性进行研究。
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。
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。
Therefore, measurement of mode field diameter of single mode fibers by far-fi...
实现了用远场掩模法对单模光纤模场直径的测量。
Therefore, measurement of mode field diameter of single mode fibers by far-fi...
实现了用远场掩模法对单模光纤模场直径的测量。
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