[Yuhang, Aritomi, Eleonora]

We measured FC round trip losses with the usual lock-unlock technique. (See pic 1). We found about 150 ppm. The associated expected sqz degradation in plotted in fig 2.

Below I reported the computation. The formulas used are from this paper.

P_res = 425;

P_in = 640;

R_gamma = P_res/P_in;

gamma = 0.06; 

R = (R_gamma-gamma)/(1-gamma);

T = 0.00136;

L = (T/2)* (1-R)/(1+R) = 148 e-6