The Dynamic Behavior of Non-Polarized Erbium-Doped Fiber Ring Laser under Experimental Pump Modulation

An Erbium-doped fiber ring laser subjected to sinusoidal pump modulation has been studied experimentally and its bifurcation diagram analyzed. Data from oscilloscope is used to analyze the interesting spectral features observed via the time domain response and frequency domain response which shows the different dynamical regimes occurring when the modulation frequency and amplitude are being varied respectively. Linear and non-linear (chaos) dynamical behaviors are observed, as well as optical bi-stability. The dynamical response of an Erbium-doped fiber ring laser can easily be studied through pump modulation.