[Aritomi, 2*Eleonora, Matteo]

This is work on 8th last week.

First we replaced a flipping mirror for BAB. Then we changed the position of OD1 from f=125mm lens to before the flipping mirror as shown in attached pictures to reduce only CC power.

CC power before OPO with OD1 is 11.6mW and 121mW without OD1.

Then we tried to align BAB, but it was difficult. We also found that CC was misaligned a lot, too. P pol was fine. We checked the beam shape of transmission from OPO with a camera as shown in last attached picture. Apart from usual beam spot on the right of the camera, there was scattering light from OPO on the left.

We'll align BAB and CC this week with camera and PD.