[Erin, Daniel] 

Inserted 2 mm thick silicon uncoated end mirror into the newly cleaned ring that will hold it. The mirror was a tight fit without the indium foil, so we didn't add it. 

Started aligning into fiber coupler so we can run a 5m fiber with 775nm light from the larger optics table to the 1ft by 1ft area we cleared on the second table. This will be for the Shack-Hartman Wavefront sensor setup, which we will use to take wavefront measurements of the mirror once we fully assemble it into the mount.