Flattened and broadband mid-infrared supercontinuum generation in As2S3 photonic crystal fibers with a square air-hole lattice

Indian Journal of Physics(2024)

引用 0|浏览5
暂无评分
摘要
This paper analyzes smooth and broadband supercontinuum (SC) generation in the mid-infrared range using square-lattice As2S3-based photonic crystal fiber (PCF). Simulation of short pulse transmission in optimal PCFs is performed by solving the generalized nonlinear Schrödinger equation with different parameters of pump sources. The first fiber has an anomalous dispersion curve that is flattest and closest to the zero dispersion of all reported fibers. It can generate a broad SC bandwidth covering a 2–11.5 μm range after injecting a pump pulse of 700 pJ energy of (5.83 kW peak power), 120 fs of duration, and 6.5 µm wavelength into 10 cm of fiber length. For the input energy of 810 pJ (9 kW peak power) and pump wavelength of 5 μm, SC spanning 1.9–8.6 μm wavelength region is observed in the second PCF with all-normal dispersion. The achieved SC could find many potential applications in material structure detection, biomedicine, environment monitoring, and food quality control.
更多
查看译文
关键词
Square photonic crystal fiber,Flattened and broadband supercontinuum generation,As2S3 chalcogenide glass,Seven air hole rings
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要