We projected the 808nm beam from the IR collimator with the latest adjustment to the collimator optics, but were not successful in propagating the beam through to the detectors. The beam expands out too quickly from the secondary telescope mirror. We need to more closely mimic the IFO beam waist size and divergence. I believe this will require a custom beam expander with an adjustable focus. The laser wavelength and power seem to be adequate. We got close, but no cigar.

I left the ETM lightly on its bottom stops only with First Contact in place and metal covers on.