Fig. 4: Evolution of electrical spectra towards chaos at 85 mA. | Light: Science & Applications

Fig. 4: Evolution of electrical spectra towards chaos at 85 mA.

From: Mid-infrared hyperchaos of interband cascade lasers

Fig. 4

a Electrical spectra for various feedback levels. b Electrical power distribution map as functions of feedback ratio and Fourier frequency. c Chaos bandwidth with Definition I (Circles) and Definition II (triangles). Stars stand for the averaged intensity noise within the photodetector bandwidth. The dashed line indicates the critical feedback level.

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