I aligned the reference cavity to give ALS more light into their fiber. The TPD voltage increased from 1.1 V to 1.8 V, but I could not get it higher. I believe it used to be around 2 V before the laser shut off this last weekend.

I increased the Common gain to 29 dB to give a UGF of 400 kHz. The light on the RFPD is quite low, around 200 mV, hence the large amount of gain.