Fig. 1. Self-chaotic circular-sided hexagonal microlaser by dual-mode internal interaction^［37］

Fig. 2. Self-chaotic circular-sided square microlaser by dual-mode internal interaction^［38］

Fig. 3. Self-chaotic microlaser with chaotic bandwidth enhanced by photon-photon resonance^［39］

Fig. 4. The square chaotic microlasers with optical feedback^［47-48］

Fig. 5. Nonlinear dynamics of integrated mutual-injection microcavity lasers^［55-56］

Fig. 6. Experimental setups for physical random bit generation based on self-chaotic microlaser^{［39，57］}

Fig. 7. Experimental setup for correlation OTDR based on self-chaotic microlaser^［59］