deletions | additions       diff --git a/figures/VGC2/caption.tex b/figures/VGC2/caption.tex  index 2e1dc84..0087de6 100644  --- a/figures/VGC2/caption.tex  +++ b/figures/VGC2/caption.tex 
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(b)  Fig.~2.~Microscopic image of (a) top view of a single bidirectional vertical grating coupler; (b) 2 x 4 bidirectional vertical grating coupler array.