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。
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。
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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