Fig3.csv

Fig. 3. (a) Exemplary radio frequency (RF) spectrum at Pavg = 623 mW measured with a resolution bandwidth (RBW) of 300 kHz. The pulse repetition rate (frep, green circle) and both CEO beat-notes (fCEO,1 and fCEO,2, blue and red circles) were measured for a series of laser output powers. Predicted CEO (fCEO1,model and fCEO2,model) beat-note positions, emerging from the presence of a SFS and intracavity GDD.

图3(a) 为平均功率$P_{avg}=623 ext{mW}$、分辨率带宽（RBW，Resolution Bandwidth）取300 kHz时测得的典型射频（RF，Radio Frequency）频谱。本实验针对一系列激光输出功率，测量了脉冲重复频率（$f_{rep}$，绿色圆点）与两组载波包络偏移拍频（CEO beat-notes），分别为$f_{CEO,1}$与$f_{CEO,2}$，对应蓝色、红色圆点。此外还给出了由孤子频率梳（SFS）与腔内群速度色散（GDD，Group Delay Dispersion）所推导得到的预测载波包络偏移拍频位置，即$f_{CEO1,model}$与$f_{CEO2,model}$。