The performance of the noise eater was last measured on the 11th October, 2017 in
this alog entry.  The performance is much better now.

    Yesterday Jason re-aligned the EOM to the beam.  The output of the monitoring photodiode is now ~1.13V
compared to the ~0.21V from before.

    The output power of the NPRO was measured to be 1.743 +/- 0.003 W in front of the EOM.  Measured with an
Ophir 7Z02692 power meter (S/N 805795) with a 10s average.

    Attached is the power noise spectrum of the NPRO output.  There's quite a broad peak from ~100 Hz to ~500 Hz.
I do not recall seeing this in an NPRO's output before.  Not sure what it's due to at this point in time.