Dissipative soliton resonance in a figure-eight multimode fiber laser

We report, for the first time to the best of our knowledge, a spatiotemporal mode locked (STML) multimode fiber laser based on nonlinear amplifying loop mirror (NALM), generating dissipative soliton resonance (DSR) pulses. Due to the complex filtering characteristics caused by the inherent multimode interference filtering structure and NALM in the cavity, the STML DSR pulse has wavelength tunable function. What's more, kinds of DSR pulses are also achieved, including multiple DSR pulses, and the period doubling bifurcations of single DSR pulse and multiple DSR pulses. These results contribute to further understand the nonlinear properties of STML lasers and may shed some light on improving the performance of the multimode fiber lasers.

Automated summary

We have reported a spatiotemporal mode locked multimode fiber laser, based on nonlinear amplifying loop mirror (NALM) for the first time, which generates dissipative soliton resonance (DSR) pulses and has wavelength tunable function. The complex filtering characteristics in the cavity, caused by the inherent multimode interference filtering structure and NALM, contribute to the generation of STML DSR pulses. This study provides insights into the nonlinear properties of STML lasers and may help improve the performance of multimode fiber lasers.