There has been some confusion on the super optics part labels and their placement position in the filter cavities. This post should clarify that for my own benefit and others. Below is a list of mirrors, their printed labels, reflectivity, and curvatures, according to https://wiki.mccullerlab.com/DCC/S2400001.

Note that the part label M1, M2, etc, does not correspond to its position in a filter cavity. The proposed configuration for the first filter cavity should be (according to labpic_w_labels_updated.png):

• A part M1 in the labeled FCM1 position in the picture. 1550 light enters here.
• A part M1 in the labeled FCM2 position in the picture. 1550 light exits here.
• A part M3 in the labeled FCM3 position in the picture. 775 light enters and exits here. This is the only curved optic.
• A part M2 in the labeled FCM4 position in the picture.