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) Optical microscope images of the fusion-splicing joint after pumped by nanosecond pulses. Panels (b)–(d) are the detailed images of the fusion splicing joint while rotating the splicing joint.