deletions | additions       diff --git a/figures/GAIN_MZI8-9/caption.tex b/figures/GAIN_MZI8-9/caption.tex  index ac8d6e2..f442929 100644  --- a/figures/GAIN_MZI8-9/caption.tex  +++ b/figures/GAIN_MZI8-9/caption.tex 
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Gain response of two-stage MZI filter (a) with two equal $\Delta L$ MZI and (b) with two-MZI with different path length differences $\Delta L$ and $2\Delta L$. Here $\Delta L = 120 \mu m$