Monolithic all-fiber mid-infrared supercontinuum source based on a step-index two-mode As<sub>2</sub>S<sub>3</sub> fiber

Monolithic all-fiber mid-infrared supercontinuum source based on a step-index two-mode As₂S₃ fiber

Yao Jinmei¹, Zhang Bin^{1, 2, 3, †}, Hou Jing^{1, 2, 3}

Beam profiles of the SC source with the long wavelength region reach (a) 3 μ m , (b) 3.5 μ m , and (c) 4.2 μ m .