摘要
根据二阶矩法、刀口扫描法、可变光阑法对光束束宽的定义，计算了二阶矩法中所有Ｍ~２≤８的拉盖尔－高斯光束的半径及相应的Ｍ~２因子的值，对所得结果进行了讨论。
According to the methods proposed by ISO the beamwidth of a laser beam can be calculated using the diameter that passes 86.5% of the total energy of the beam, the knife edge and the second moment methods of beamwidth measurement. For all Laguerre - Gaussian modes whose M^2 calculated with the second moment method were less then or equal to 8, the beamwidths and beam quality factors were calculated and the results were discussed.
出处
《应用激光》
CSCD
北大核心
1999年第5期313-315,共3页
Applied Laser
关键词
束宽
光束质量因子
光束半径测量法
激光
beamwidth, factor of laser beam quality, Laguerre - Gaussian beam
