High-power ultraflat broadband supercontinuum generation in fluorotellurite fiber pumped by a dual-wavelength femtosecond laser.

In this Letter, we report an ultraflat high-power supercontinuum (SC) based on a low-loss short-length fluorotellurite fiber. A novel high-peak power dual-Raman soliton femtosecond laser is used as a pump source, which effectively extends the mid-infrared SC spectral range and enhances the flatness of the SC. Finally, we obtained a 10.

Lasing at 2.1 µm pumped by a simultaneous-gain clad laser.

We obtained lasers based on the simultaneous-gain clad pump laser in a fluorotellurite fiber. Using a secondary suction method, we prepared a fluorotellurite double-clad preform with a Ho-doped core surrounded by a Tm-doped inner cladding, which we then drew into fibers. Tm ions generate a 1.

Generation of sub-150 fs, 10 W-class, pedestal-free 2.07 µm ultrashort pulses using a cascade compression system.

We report high-power pedestal-free ultrashort pulses in a cascade compression system. In the self-compression stage, the 2 µm ultrashort pulses with 123 fs duration and up to 21.7 W output power were obtained in a 0.

High-power tunable Raman soliton generation in large core diameter passive fibers via a precise fundamental-mode matching technique.

We demonstrate tunable high-power, high-energy Raman solitons with the range of 1.9-2.3 µm in large mode area (LMA) fibers and an optimized fundamental-mode matching technique for coupling LMA silica fibers.