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}

(a) Transmission of the splicing point under continues-wave laser at 1960 nm. Inset: optical microscope images of the fusion splicing joint. The end facet of (b) As₂S₃ fiber and (c) UHNA fiber after pulling the joint apart.