Broadband similariton generation in a model-locked Yb-doped fiber laser

We experimentally demonstrated a broadband similariton generated from a mode-locked Yb-doped fiber laser with dispersion compensation. The broadest spectrum was obtained by pushing the net dispersion to its limitation and fully exploiting the gain bandwidth. The spectrum was 115 nm broad in 10 dB bandwidth and 36 nm broad in 3 dB bandwidth. The output was 105 mW optical power at 545 mW pump power. Simulation combined with experiment was performed to investigate and confirm the mode-locking regime of the laser. Experimental observations agreed well with the numerical simulation. We believe our study provides a practical route for designing broadband mode-locked fiber lasers. (C) 2022 Optica Publishing Group

Automated summary

In this experiment, we demonstrated a broadband similariton generated by compensating dispersion in a mode-locked Yb-doped fiber laser. By pushing the net dispersion to its limit and fully utilizing the gain bandwidth, the widest spectrum was achieved. The experimental observations agreed well with the numerical simulation. We believe our study provides a practical approach for designing broadband mode-locked fiber lasers.