[Nakano, Kasuya, Enomoto]

Since the beam whose profile is same as that of PMC transmission beam got ready, we started putting some optics for RefCav.
Today we put an EOM for RefCav length control and an AOM for frequency shift (that will be used as a double path AOM).
We put a lens with f = 300 before the EOM and one with f = 150 before the AOM as designed, and we were able to get the beam through these optical components successfully.
Top view around these optics is shown in the attached picture.
As soon as a curved mirror and a QWP, which are needed for double path configuration, get available, we will continue this work.