A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity.This fiber,called hollow-...A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity.This fiber,called hollow-core photonic quasicrystal fiber(HC-PQF),can simultaneously realize a high birefringence that reaches 1.345×10^-2 and a small nonlinear coefficient of 1.63×10^-3 W^-1·km^-1 at a communication wavelength of 1.55μm due to the air-filled core and unique quasiperiodic fiber structure.To further demonstrate the controllability of the nonlinear coefficient and the application of sensor and polarization-maintaining fiber,the nonlinearity is investigated by filling different inert gases in the fiber core while the birefringence keeps a high order of 10-2.In the wavelength rangeλ∈[1.53μm,1.57μm],the dispersion is near zero and flattened.The HC-PQF is expected to be used for applications in optical communication,high power pulse transmission,polarization beam splitters,etc.展开更多
基金supported by the National Natural Science Foundation of China(No.61405058)the Natural Science Foundation of Hunan Province(No.2017JJ2048)the Fundamental Research Funds for the Central Universities(No.531118040112)。
文摘A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity.This fiber,called hollow-core photonic quasicrystal fiber(HC-PQF),can simultaneously realize a high birefringence that reaches 1.345×10^-2 and a small nonlinear coefficient of 1.63×10^-3 W^-1·km^-1 at a communication wavelength of 1.55μm due to the air-filled core and unique quasiperiodic fiber structure.To further demonstrate the controllability of the nonlinear coefficient and the application of sensor and polarization-maintaining fiber,the nonlinearity is investigated by filling different inert gases in the fiber core while the birefringence keeps a high order of 10-2.In the wavelength rangeλ∈[1.53μm,1.57μm],the dispersion is near zero and flattened.The HC-PQF is expected to be used for applications in optical communication,high power pulse transmission,polarization beam splitters,etc.
