This afternoon I tweaked up the DBB and took a round of measurements prior to the 70W amplifier install. Something appears to be not quite right with this NPRO laser. Both the frequency and pointing noise measurements show a very large peak between 100 Hz and 500 Hz, with the peak being somewhere in the neighborhood of 260ish Hz. This looks similar to the peak from Peter's NPRO measurements from this morning. We'll have to look into this first thing on Tuesday morning. Perhaps our decision to keep the old NPRO power supply installed was not a wise one, as there can sometimes be odd behavior when using a NPRO with a different power supply. Swapping in the new power supply is fairly painless, so this will be easy to check, although we will then lose the ability to remote start the NPRO laser, and therefore the PSL as well.
I dug up the acceptance test results for this laser (T1500521) and the same peak is present when the power supply that came with the laser was used. So it is not likely to be solely due to the different power supply.