Attached figure is FDS curve with correct detuning (54Hz). With following parameters, frequency at which squeezing crosses shot noise is around 120Hz and frequency at which anti squeezing crosses shot noise is around 45Hz.

sqz_dB = 8;                    % produced SQZ

L_rt = 150e-6;                    % FC losses

L_inj = 0.20;                     % Injection losses

L_ro = 0.10;                      % Readout losses

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

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

ERR_L =   8.5e-12;                  % Lock accuracy [m]

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

phi_Hom = [0/180*pi, 10/180*pi, 20/180*pi, 30/180*pi, 40/180*pi, 50/180*pi, 70/180*pi ,90/180*pi];  % Homodyne angle [deg]

det = -54; % detuning frequency [Hz]