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。
It is shown that the twist result is an increase of the intrinsic astigmatism, but doesn't affect the M2 factor in general.
研究表明，一般而言，扭曲会引起本征像散的增加，但却不会影响M2因子。
It is shown that the twist results is an increase of the intrinsic astigmatism, but doesn't affect the M2 factor in general.
研究表明，一般而言扭曲会引起本征像散的增加，但却不会影响犷因子。
Finally by analyzing these data we can obtain the parameters about the laser beam such as: beam size, relative beam power, relative peak power, divergence Angle, M2 factor and so on.
通过分析这些数据可以获得有关光束的一些参数，如光斑尺寸、相对光功率、相对峰值功率、发散角、M2因子等等。
The chromatic factor M2 is found invariable while the laser beam propagates through the dispersion-free ABCD system.
通过实验，我们发现在经过无色散的ABCD系统时彩色光束的M2因子是不变的。
A simple method to measure the chromatic beam factor M2 is demonstrated.
一种简便的实验方法被用来测量彩色光束M2因子。
The concept of the beam propagation factor M2 is extended for chromatic laser beams. The definition of the beam propagation factor can be generalized with the weighted effective wavelength.
本文把激光光束的M2因子的概念扩展到了彩色激光光束，并定义彩色激光光束的M2因子为有效波长的加权平均。
The concept of the beam propagation factor M2 is extended for chromatic laser beams. The definition of the beam propagation factor can be generalized with the weighted effective wavelength.
本文把激光光束的M2因子的概念扩展到了彩色激光光束，并定义彩色激光光束的M2因子为有效波长的加权平均。
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