Aaron and I set up the beatnote measurement between the Teraxion and (either south or north) RIO:

• mounted all the Teraxion stuff on the NW corner of the Green Monster table.
• Used a high power (300 mW!!) fiber coupler to take ~1% of the beam and send that to the PSOMA table on the overhead PM fiber.
• Aaron measured ~0.2 mW at the PD ?
• The beat note amplitude is ~-15 dBm out of the New Focus 1611 (1000 V/A AC transimpedance)
• Split the output with a RF splitter (NOT a BnC tee) to the 3 GHz spetrum analyzer and rack mounted Moku.
• Recorded some phase meter data with the beat at ~148 MHz.

Turned Teraxion laser OFF around 9 PM. Analysis in progress if I can figure out how to get the data.

Next we'll have to do some careful temperature tuning to get the RIO laser into a low noise state and simultaneously have a beatnote < 200 MHz.