Mid-infrared supercontinuum generation in a thulium-doped ZBLAN Fiber

Mid-infrared supercontinuum has been widely used in biomedicine, spectroscopy and other fields. The past decade has seen tremendous progress in the field of supercontinuum lasers. In this paper, supercontinuum generation based on a thulium-doped ZBLAN fiber amplifier was achieved. A supercontinuum with spectral coverage of 1.9-3.75 μm and an output power of 1.64 W was achieved in a thulium-doped ZBLAN fiber amplifier. In this paper, we also compare the output of supercontinuum laser in silica-fiber-based and fluoride-fiber-based thulium-doped fiber amplifier respectively with the same seed parameters.