Co-Existence of Watt-Level Dissipative Solitons and Synchronous Dual-Wavelength Mode-Locked Pulses in Yb Fiber Laser

We present a high-average-power laser configuration to simultaneously generate both dissipative solitons (DSs) and synchronous dual-wavelength mode-locked (ML) pulses using large-mode-area (LMA) fibers in combination with a birefringence-based chirped-pulse spectral filter. DSs with average power as high as 5.8 W and pulse width as short as 178 fs are obtained at the output port. Meanwhile, up to 1.5 W average power in synchronous dual-wavelength ML pulsed operation is also obtained at the rejected port with central wavelengths located at 1029.7 nm and 1046.1 nm respectively. To our knowledge, observation of such behavior with both DSs and synchronous dual-wavelength pulse generation simultaneously has not been yet realized in watt-level fiber lasers.

Automated summary

We propose a high-average-power laser configuration that can simultaneously generate dissipative solitons (DSs) and synchronous dual-wavelength mode-locked (ML) pulses. This is achieved through the use of large-mode-area (LMA) fibers along with a birefringence-based chirped-pulse spectral filter. This configuration allows for the generation of DSs with average power up to 5.8W and pulse width as short as 178fs, as well as synchronous dual-wavelength ML pulses with average power up to 1.5W at central wavelengths of 1029.7nm and 1046.1nm respectively. To the best of our knowledge, this simultaneous observation of DSs and synchronous dual-wavelength pulses has not been achieved in watt-level fiber lasers.