Alberto, Keita and I finalised the WFS beam paths. The beam sizes are ~3-4mm in diameter on each of the WFS, with a picomotor mirror mount as the last optic/mirror before the WFS.

The beams are 'mostly' centered on the WFS. I haven't measured any power levels.

We placed a R=100mm (focal length ~200mm) lens infront of the RF LSC diode. This inturn seems to work properly, and there are no gain fluctuations in the CM PDH transfer function (as was the case with the previous attempt, although it tunred out that we could not work out the focal length of the other lens).

The CM PDH lock is ~12 kHz with -14dB of gain at the input. We may want to shift this gain down the path somehow.

The RF LSC diode gives ~29 mV DC.