激光光束质量综合评价的探讨

1650

中国激光36卷

Radius/mm

图1(a)6个高斯光束以六角形孔排列;(b)相干和非相干光束桶中功率曲线

Fig.1(a)SixGaussianinputbeamsarrangedina“bolthole”beampattern;(b)power—in—the-bucket

curves

forcoherent

andincoherent

bolt—holebeams

基4

:◆

20

406080

100

口肠

图2

LP。.模与LP。z模叠加后的肝因子随LP。z模所占比例n的变化。(a)非相干叠加;(b)相干叠加(驴为相位差)

Fig.2

Beam

qualityfactorof

coherentmixedmodes

versus

thefractionofthetotallightintensitycarriedbythehigher—order

mode.(a)Incoherentand(b)coherentsuperpositionofLP01andLPozmodes.出isthephasedifference

betweenthe

two

constituentmodes

图3厄米一高斯光场TEM05,TEMl3(25。),TEMz2,TEM。8,TEM;。(50。),TEM。TEM6。的模场分布

Fig.3

Intensitydistributionof

M2一factor

of

Hermite-GaussianTEM05,TEMl3(25。),TEM22,TEM38.TEM40(50。),TEM5"

TEM6lmodes

相关文档
最新文档