deletions | additions       diff --git a/There_will_be_5_different__.tex b/There_will_be_5_different__.tex  index 226a5b9..64ec2ed 100644  --- a/There_will_be_5_different__.tex  +++ b/There_will_be_5_different__.tex 
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There will be 5 different Mach-Zhender Interferometer designs, and two cascaded MZI designs.  I decided to test the fiber couplers (TE/TM polarization) and Y-branch.  Table \ref{tab:mzi} shows the 7 different variations of the MZI design according to polarization and path length difference. also, the FSR at 1550 nm with a group index of 4.2 is estimated for each path length difference.