Stability degradation factors evaluated by phase noise measurement in an optical-microwave frequency link using an optical frequency comb

We are developing a highly stable optical-microwave frequency link system using an optical frequency comb. We consider the stability degradation factors in the frequency link system to be the synthesis, phase locking, and photo detection system of the repetition frequency. We evaluated these factors by undertaking phase noise measurements and we estimated the stability from these results. These estimations were consistent with experimental results.