ABSTRACT
Ultra-short pulse generators are lightwave sources that emit short pulses of high intensity. This chapter presents a number of important and emerging light sources of very narrow pulse width sequences considered for application in soliton communications and soliton logics. It focuses on the trapezoidal optical integrator is proposed as an optical dark-soliton generator, and the first-order first-derivative optical differentiator and the first-order Butterworth Lowpass optical filter are proposed as optical dark-soliton detectors. The chapter draws on the stability and transient analyses of the rational harmonic mode-locking in the fiber ring laser system using phase plane method, which is commonly used in nonlinear control system. It discusses the rational harmonic detuning technique. The chapter describes the experimental setup for the repetition rate multiplication. It investigates the dynamic behavior of the phase plane of the fiber laser system, followed by some simulation results. The chapter presents and discusses the results obtained from the experiment and simulation.
