Highly stable soliton and bound soliton generation from a fiber laser mode-locked by VSe2 nanosheets

We demonstrate the highly stable soliton generation from a fiber laser mode-locked by the VSe2 nanosheets experimentally. The VSe2 nanosheets prepared via the liquid phase exfoliation method exhibit ultrafast relaxation time and excellent nonlinear optical behavior with saturation intensity and modulation depth of 14.28 MW/cm(2) and 19.11%, respectively. A highly stable mode-locked Er3+-doped fiber laser with pulse duration of 714 fs and signal-to-noise ratio of 78.44 dB has been delivered successfully based on the VSe2 nanosheets saturable absorber. In addition, the transition from the conventional soliton to bound-state soliton has been observed experimentally. Our results reveal that VSe2 nanosheets possess excellent nonlinear optical performance and can act as a robust optical platform for versatile optical applications. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Automated summary

We demonstrate the highly stable soliton generation from a fiber laser mode-locked by the VSe2 nanosheets experimentally. The VSe2 nanosheets prepared via the liquid phase exfoliation method exhibit ultrafast relaxation time and excellent nonlinear optical behavior. They can act as a saturable absorber to achieve stable mode-locked laser output. The experimental observation also reveals the transition from conventional soliton to bound-state soliton.