Abstract:

The chaotic behaviors generated by an erbiumdoped fiber (EDF) singlering lasers(EDFSRL) were investigated experimentally via the delay feedback method. The chaotic characteristics of this system were studied by observing the time series and power spectrum.  An optical delay feedback loop was added in the system. Thus, by changing the intensity and retardation time of the optical delay feedback signal, the freedom of this EDFSRL system was increased.  The experimental results indicate that the erbiumdoped fiber singlering laser system can generate chaos through the perioddoubling bifurcation route under the experimental conditions selected by us.

Key words: erbium-doped fiber single-ring lasers, delay feedback, chaos generation, power spectrum