[Aritomi, Yuhang]

 

We measured phase noise of CC1,2. Error signal is

 

CC1: 84.8mVpp

CC2: 252mVpp

 

Green power is 40mW and CC2 demodulation phase is 50deg (squeezing).

Note that peak to peak value of CC2 error signal is changed by overlapping of LO and CC and demodulation phase of CC2.

 

Attached plot shows phase noise of CC1,2.

 

We also measured CC2 OLTF (Pic. 3). UGF of CC2 is around 350Hz and we couldn't increase UGF because of 3.2kHz resonance.