The recent definitions of coherence time and coherence length are introduced.
综述了目前对相干时间、干长度的各种定义。
The strehl ratio of PCFT beam array with small coherence length and bigger beam order are less affected by turbulence.
相干长度越小、光束阶数越大，部分相干平顶光束序列的斯特列尔比受湍流影响越小。
Axial resolution in optical coherence tomography (OCT) imaging is determined by the coherence length of light source and the beam-focusing condition.
其轴向分辨率由光源带宽和探测光束的聚焦条件共同决定。
The influence of atmospheric turbulence on the relative beam width spreading is larger for PCFT beam array with larger beam order and smaller coherence length.
光束阶数越大、相干长度越小，部分相干平顶光束序列的相对束腰宽度扩散较快；
Atmospheric coherence length is one of important parameters of atmospheric turbulence, atmospheric propagation of laser and phase adjustment of adaptive optics.
大气相干长度是研究大气湍流强度、激光大气传输以及自适应光学的重要参量之一。
Different shapes of intensity distribution can be gotten by changing the parameters of radius, location, transmittance of amplitude modulations and spatial position, and the coherence length.
通过对振幅调制半径、调制位置、透射率以及空间位置和相干长度参数的改变，可以获得不同形状的光强分布。
The influence of the optical length, the output couple coefficient of the optical fiber ring cavity upon the STF and the coherence of the loss is also analyzed.
结合光纤环光学长度和耦合输出系数，就损耗对光纤环光谱传递函数和相干性的影响进行了分析讨论。
The influence of the optical length, the output couple coefficient of the optical fiber ring cavity upon the STF and the coherence of the loss is also analyzed.
结合光纤环光学长度和耦合输出系数，就损耗对光纤环光谱传递函数和相干性的影响进行了分析讨论。
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