[Aritomi, Yuhang]

I fitted the data from 70Hz to 800Hz. Compared with last week's measurement, produced SQZ increased from 7dB to 8.2dB since we optimized OPO temperature and p pol PLL. We found that today filter cavity is very stable and locking accuracy seems better than usual.

One thing we can try is to reduce LO if we can improve backscattering. Also we can try to reduce green power a bit more.

sqz_dB = 8.2;                    % produced SQZ

L_rt = 150e-6;                    % FC losses

L_inj = 0.20;                     % Injection losses

L_ro = 0.11;                      % Readout losses

A0 = 0.05;                         % Squeezed field/filter cavity mode mismatch losses

C0 = 0.05;                         % Squeezed field/local oscillator mode mismatch losses

ERR_L =   5e-12;                  % Lock accuracy [m]

ERR_csi = 80e-3;                  % Phase noise[rad]