before the current driver went bad, I took the beatnote time series. Its not bad!

I couldnt get the .mat file to load (although Shruti did...), so this is from the CSV file.

It looks better than the usual NPROs, and this is still on the noisy ITC 502 driver. We will need to measure the current noise of that driver and see how it lines up on this plot to figure out how low noise we really need for PSOMA.

And need to redo this measurement with longer duration once I fix one of our custom drivers.