Midinfrared pulse generation by pumping in the normal-dispersion regime of a gas-filled hollow-core fiber

• Main Authors: Hasan, Md Imran, Akhmediev, Nail, Mussot, Arnaud, Chang, Wonkeun
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Midinfrared Pulse Generation; Gas-filled Hollow-core Fiber
• Online Access: https://hdl.handle.net/10356/143995
• Institution: Nanyang Technological University

We demonstrate, numerically, the generation of supercontinuum using a high-power ultrafast source at 1.06-μm wavelength and a nonlinear hollow-core fiber. We yield a system that is less sensitive to noise by pumping in the normal-dispersion regime, yet still achieves enhanced spectral broadening by exciting an optical soliton in the midinfrared region. The pump pulse goes through a series of nonlinear effects leading to a supercontinuum output that spans across the midinfrared, 0.5–4.2 μm