Attached is power point with images that show were we have IR light where we should not, fringes where we should have beams, and IR light artifacts where we never have had them before.

Since putting in the new PMC, the IO path has had 2 optic changes, both successfully installed and the input pointing restored.

The beam through the EOM and through the entire IOpath has degraded over time, see my FRS 11631 about the clipping on the output of the EOM in the IO path.  The attachment shows that the beam shape at IMC_IN has gotten worse.

Given that I've never had IR artifacts, and fringes where there should be beams, and I have watched the alighnment degrade, I can only conclude that aliging the IO path is needed to correct these issues.