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