The dispersive Fourier transform technique provides feasibility of exploring non-repetitive events and the buildup process in ultrafast *** this paper,we report a new buildup process of dissipative solitons in a simpl...
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The dispersive Fourier transform technique provides feasibility of exploring non-repetitive events and the buildup process in ultrafast *** this paper,we report a new buildup process of dissipative solitons in a simplified mode-locked Yb-doped fiber laser,which includes more complex physics stages such as the Q-switching stage,raised and damped relaxation oscillation stages,noise-like stage,successive soliton explosions stage,and soliton breathing *** evolution dynamics of noise-like pulse and double pulse are also investigated with dispersive Fourier *** the noise-like pulse dynamics process,it will only experience the Q-switching and relaxation oscillation *** the case of dissipative soliton and noise-like pulse,the double pulse buildup behavior is manifested as the replication of individual pulses.A weak energy migration occurs between two pulses before reaching steady ***,real-time mutual conversion of the dissipative soliton and noise-like pulse has been experimentally observed,which appears to be instantaneous without extra physical *** the best of our knowledge,this is the first report on these physical phenomena observed together in a mode-locked fiber *** results further enrich the dynamics of mode-locked fiber lasers and provide potential conditions for obtaining intelligent mode-locked lasers with controllable output.
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