[Izumi, Sugimoto, Yokogawa]

Aug.10th:

Continuing from yesterday (Aug.9th), we installed the optics for ALS system on the PSL optical table.

The optical system for X-arm

We have already installed the optics for X-arm except the IR BS1 which take the beatnote between ALS laser and Main laser.

The optical system for Y-arm

As for the  green beam, we only need to install the last steering mirror (Gr M15 and M16) and the fiber coupler (Gr FC2).

As for the IR beam, we need to install the Faraday Isolator (IR F.I.2) and the optics for the main laser path (IR M13, M14, M15, BS2, L4, HWP6 and PBS4).