Supercontinuum generation in chalcogenide layered spiral microstructured optical fiber
Abstract
The layered spiral microstructured optical fiber (LS-MOF) design allows higher nonlinearities than the most common microstructured optical fibers. Here, we have chosen a highly nonlinear glass for its composition, the arsenic trisulfide, and we have determined its dispersion and nonlinear characteristics. After adjusting the fiber’s parameters, we obtained a record value for the nonlinear parameter of 50.7Wm, at 1.550m. We have simulated light propagation under these optimized circumstances, achieving a broad supercontinuum, extending from 500nm to 3900nm, in a very short distance: 0.3mm.