PSL installation team

We aligned the modematching between the HPL (200W laser) and the DBB as well as the modematching between the frontend (35W laser) and the DBB. The 200 mm quartz modematching lens inside the DBB box (on the rail) has been exchanged with a BK7 lens of the same focal length. The second lens on this rail (BK7, 80mm focal length, PlaKo) has been turned, such that the plane side faces to the first lens. On the MOPA path the 100 mm modematching lens has been exchanged with a 200 mm lens (both BK7).
We performed a modescan and measured 6.7% in higher order modes for the 200 W system and 4.9% in higher order modes for the MOPA.

We aligned the IS AOM (high power AOM), measured bandwidth: 3MHz.

The work on the rest of the beam paths is ongoing.