- Status of assembly
The moving of laser and optics according to Matteo/Eleonora new scheme is started.
We need to check the polarization used/to be used on the bench (is it OK to
work with S-pol?).
Need to check cables behind the lasers. Do they interfere with the beam?
Need to discuss with Matteo and Eleonora.
Yuefan will continue the assembly and fix the lenses required.

- Mode cleaners for 1064 nm and 532 nm
Mechanical design received from Trento. Looking for a company that can produce
them (with the help of Akutsu/ATC).
Curved mirror (1m ROC) may be bought from CVI (Raffaele contacted them)
Trento bought flat mirrors from Opto Sigma.
We can do the same but we need to fix the finesse and the polarization so that
we can fix the coating specifications (to be discussed with Virgo people).
PZT from PI. Raffaele will send the reference to Tatsumi-san to order it.
Viton o-ring to keep the mirror at the good position and allow position control
of the curved mirror. Raffaele will send the reference to Tatsumi-san to order it.

- Height of table and window
Window on vacuum chamber is at 1190 mm. Table is at 900 mm (so beam is at 973 mm).
Three beams need to enter from the window (two squeezed beams at 1064 nm and one
green beam at 532 nm). We would like to avoid periscopes and minimize losses.
So we would like to increase table height by 217 mm so to have the beams at 1190 mm.
Tatsumi-san will investigate what is the solution used in KAGRA.

- Window size
We need to pass three beams through the window.
Yuefan measured the size of the present window.
Size of present window is probably too small.
Larger size is possible. Maybe 9 cm. Is it OK?
The mechanical design used for the KAGRA windows was provided by Autsu-san.
We can start from there. Once the mechancial design will be fixed
we can fix the optic design (diameter, thickness, wedge) and ask
quotation to Sigma Koki.