[Torrey, Daniel]

The alignment tools for centering the piezo on the mirror for the output filter cavities are in the global industrial cabinet above the label PIEZO ALIGNMENT TOOL. I tested out daniel's latest version for the large thorlabs piezo and it works well. I did not achieve a robust lock with this piezo. I suspect this more has to do with poor alignment on the REFL PD used for PDH locking as the error emplitude is much smaller in this configuration even with the tank circuit boost to the phase modulations. The error signal is clean but the amplitude is only 1.7 mVpp on 0dB input gain vs other piezos that reached as high as 12 mVpp on similar gain settings.

More time could be spent on this but I am transitioning to cavity super optics and 775 nm light today.