Breathing dynamics in an ultrafast all-PM Yb-doped fiber laser

Breathing-like dynamics, which is a ubiquitous phenomenon found in numerous physical systems, has recently been observed in mode-locked Erbium-doped fiber lasers. In this paper, we further generalize these fascinating phenomenon by reporting the real-time experimental observations of a breathing-like structure in an all-normal dispersion all-polarization maintaining Ytterbium-doped fiber laser. Contrary to previous studies, we show that the pulsation period increases with the pump power until a stationary dissipative soliton is formed. Our results can help better understand laser physics, and further optimize and improve a fiber cavity design.