Yaochin and Yuhang

We see anti-squeezing rotates to squeezing @2kHz. But the filter cavity was really unstable.

average: 50 times

Setting of hand-fit parameters:

sqz_dB = 9.5;                      % produced SQZ

L_rt = 105e-6;                    % FC losses

L_inj = 0.17;                     % Injection losses

L_ro = 0.1;                      % Readout losses

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

C0 = 0.03;                        % Squeezed field/local oscillator mode mismatch losses

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

ERR_csi = 50e-3;                  % Phase noise[rad]

phi_Hom = [-1/180*pi, -11/180*pi, -75/180*pi];         % Homodyne angle [rad] (you can input a vector of values)

det =  2e3;                       % detuning frequency 

int = 0.8e3;                         % frequency range = det+/-int 

Setting of shot noise level/detuning error parameters:

semilogx(fd+34, d_a1+133.5,'k','LineWidth',3) %squeezing to anti-squeezing

hold on

semilogx(fd+32, d_a2+133.5,'LineWidth',3) %anti-squeezing to squeezing

hold on

semilogx(fd+150, d_a3+133.5,'LineWidth',3) %intermediate