[Aritomi, Yuhang, Michael, Marc]

Today the new mirror mounts (FMD MM1000S) arrived and we started the replacement work.

We replaced 1 mirror mount before AMC and 3 mirror mounts in IR injection path.

We also replaced 5 mirrors in the IR injection path with layertec mirror (106910) whose reflectivity is more than 99.9%.

While I mounted the mirror, I tightened the screw too much and broke one mirror...

After the replacement work, we completely lost the IR alignment, but we recovered it. Now the IR transmission is more than 400 with 450uW injection. The IR transmission should be more than 500 with 450uW injection, so we still need to optimize it.

From tomorrow, we will optimize the injection alignment and replace mirrors and mirror mounts in the reflection path and try to optimize the reflection mode matching.