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Beyond Two-Octave Coherent OAM Supercontinuum Generation in Air-Core As2S3 Ring Fiber
In this work, we designed and simulated a novel air-core As 2 S 3 ring fiber that supports orbital angular momentum (OAM) modes. By optimizing the structure parameters of the designed fiber to effectively tailor its chromatic dispersion, a near-zero flat dispersion profile with a total of < ±30 ps/nm/km variation over 3380-nm bandwidth from 2025 nm to 5405 nm is achieved for OAM 1,1 mode. After launching a 100-fs 70-kW hyperbolic secant pulse into an 8-mm air-core As 2 S 3 ring fiber, adoi:10.1109/access.2020.2996666 fatcat:bu5nerwdcrfljgfgowiwu7a6da