超连续谱
光子晶体光纤
生物光子学
材料科学
光学
宽带
光电子学
色散(光学)
色散位移光纤
光纤
光子学
纤维
波长
光纤传感器
物理
复合材料
作者
Shah Md. Salimullah,Md. Shakhawath Hossain,Mohammad Faisal
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2021-06-17
被引量:2
标识
DOI:10.1117/1.oe.60.6.066110
摘要
We present broadband supercontinuum generation in dispersion engineered tellurite clad As2S3 core photonic crystal fiber. Finite element method (FEM) is adopted for different numerical analysis of the fiber. The design is so engineered that zero dispersion is obtained at 1550-nm wavelength. Very high nonlinearity is achieved in the proposed structure as 5.5 × 104 W − 1 km − 1. For a 20 fs input pulse with 3-kW peak power, the fiber presents a wideband supercontinuum spectrum spanning a huge bandwidth of 11,454 nm using just 1-mm length of fiber. This might play a vital role in ultra-broadband signal amplification, biomedical imaging, biophotonics, and spectroscopy.
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