The method can confirm the Gaussian distribution of optical intensity for the fundamental transverse mode of the He-Ne laser and determine the size of its light spot.
这种方法能够证实氦氖激光基横模的光强分布是高斯分布，能够确定光斑的大小。
It is obtained by numerical calculation that the mode spot size at the mirrors in a resonator with arbitrary configuration is always a finite value as long as radial gain variations are present.
只要出现径向增益变化，通过数值计算得到任意结构的谐振腔腔镜处的光斑尺寸总是有限值。
The parameters are laser power, power density, beam spot size, welding speed, laser mode and auxiliary gas blow.
研究了激光焊缝质量与激光焊接工艺参数的关系；
The parameters are laser power, power density, beam spot size, welding speed, laser mode and auxiliary gas blow.
研究了激光焊缝质量与激光焊接工艺参数的关系；
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