Vicky, Dhruva, Aaron, Camilla. Diagrams: SQZT7 - E2000282 (paths swapped in alog64677), HAM7 - D2000021 and cartoon of all - D1900281.

Before venting HAM7 we wanted to check that the green beams all all coming out of HAM7 nicely. The three beams are all coming out. If looking at HAM7 from Left to right they are OPO green REFL, FCGS (filter cavity green sensing reflection), SK path (both OPO refl and FCGS co-aligned) see photo of all beams, and just OPO refl and FCGS.

We plan to lower the top periscope mirror for the FCGS/SK paths as the beams are close to clipping, see photo.

The bottom periscope mirrors could have dust blown off them. Photo of current beam locations at lower periscope mirrors (with FCGS shuttered).

SK and FCGS beams swap and move further apart by the time they reach the optical table, see photo of beams on SQZT7.