Self-organized compound pattern and pulsation of dissipative solitons in a passively mode-locked fiber laser

We experimentally observe soliton self-organization and pulsation in a passively mode-locked fiber laser. The opto-mechanical interaction in the optical fiber is key to the formation of equidistant soliton bunches. These solitons simultaneously undergo a pulsation process with a period corresponding to tens of the cavity round trip time. Using the dispersive Fourier transformation technique, we find that the Kelly sidebands in the shot-to-shot spectra appear periodically, synchronizing with the pulsation. (c) 2018 Optical Society of America