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. 2016 Mar 1;6:22082. doi: 10.1038/srep22082

Table 1. Obscuration Ratios for the Optical Link.

Beam Type Mode Order Spot Size Obscuration Ratio (ζ)
BG l = 1 1 mm 1 (rObs = 1 mm) 1.5 (rObs = 1.5 mm)
l = 3 2.1 mm 0.47 (rObs = 1 mm) 0.71 (rObs = 1.5 mm)
LG l = 1 0.71 mm 1 (rObs = 0.7 mm) 1.4 (rObs = 1 mm)
l = 3 1 mm 0.7 (rObs = 0.7 mm) 1 (rObs = 1 mm)