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Enhanced nonlinearity in photonic crystal fiber by germanium doping in the core region |
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| Authors: | Tingting Sun Guiyun Kai Zhi Wang Shuzhong Yuan Xiaoyi Dong |
| Abstract: | Germanium doping in silica can be used as a method for nonlinearity enhancement.Properties of the enhanced nonlinearity in photonic crystal fiber(PCF)with a GeO2-doped core are investigated theoretically by using all-vector finite element method.Numerical result shows that the nonlinear coefficient of PCF is greatly enhanced with increasing doping concentration,furthermore,optimal radius of the doped region should be considered for the desired operating wavelength. |
| Keywords: | core region doping germanium photonic crystal fiber optimal radius doped operating Numerical result nonlinearity coefficient increasing concentration finite element method Properties Germanium silica used enhancement |
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