Fig. 1. Schematic diagram of the SL-EOI-DFOF system.

Fig. 2. Time series (a1)−(a3), ACF curves (b1)−(b3) and MI curves (c1)−(c3) of chaotic laser from the SL-EOI-DFOF at different delay times : (a1)−(c1) ; (a2) −(c2) ; (a3)−(c3) .

Fig. 3. Two-dimensional maps of the time-delay characteristic in the parameter space of and of chaotic laser from the SL-EOI-DFOF.

Fig. 4. Variations of the time delay characteristic values with of chaotic laser from the SL-EOI-SOF, SL-EOI-DOF, SL-EOI-SFOF, SL-EOI-DFOF and SL-DFOF, respectively.

Fig. 5. Variations of the time delay characteristic values with of chaotic laser from the SL-EOI-DFOF and SL-EOI-SFOF, respectively.

Fig. 6. Time series (a1)−(a3) and the corresponding power spectra (b1)−(b3) of chaotic laser from SL-EOI-DFOF at different external light injection coefficient : (a1), (b1) ; (a2), (b2) ; (a3), (b3) , the dashed lines in (b1)−(b3) indicate the value of the 3 dB bandwidth of the chaotic laser.

Fig. 7. Bandwidth versus of chaotic laser from the SL-EOI-DFOF.

Fig. 8. Bandwidth versus of chaotic laser from the SL-EOI-DFOF.

Fig. 9. Bandwidth versus of chaotic laser from the SL-EOI-DFOF.

Fig. 10. Bandwidth versus of chaotic laser from the SL-EOI-DFOF.