A research team led by Prof. Dr. YANG Xiaojun from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences (CAS) conduct a power scaling study for the femtosecond dissipative soliton generation with a 10-μm core diameter, fiber-based, compact-sized, and low-cost all-normal-dispersion laser configuration.

 Schematic of the power-scaled dissipative soliton mode-locking fiber laser. (Image by XIOPM)

Laser performance, in terms of spectra distribution, temporal characteristic, average power, and stability in 8h, for different filtering bandwidths has been, respectively, investigated.

In the experiment, the obtainable highest output power and shortest pulse duration are 4.5W and 85 fs, respectively. To our best knowledge, this is the shortest pulse duration among the reported all-fiber pumped Watt-level mode-locked fiber lasers.

(Original research article “Frontiers in Physics” (2020) https://doi.org/10.3389/fphy.2020.00048)