Fig. 6: Chaos of the DFB ICL.

a Electrical spectra at several feedback ratios. b Chaos bandwidth with Definition I (Circles) and Definition II (triangles). Stars stand for the power enhancement span. The feedback length is 30 cm.

a Electrical spectra at several feedback ratios. b Chaos bandwidth with Definition I (Circles) and Definition II (triangles). Stars stand for the power enhancement span. The feedback length is 30 cm.