YANG Jing, SHI Wei-hua. Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber[J]. 2016,(6):36-38. DOI: 10.13756/j.gtxyj.2016.06.010.
a new type of double-mode photonic crystal fiber with flattened-dispersion is designed.The transmission and dispersion properties are simulated by Finite Element Method(FEM).The impacts of the parameters of the PCF on the dispersion properties are analyzed.The results show that the double-mode PCF can gain stable transmission of the two modes when the structural parameters of PCF areΛ=10μm
d1/Λ=0.55
d2/Λ=0.65
d3/Λ=0.75.The confinement loss of each mode is less than 1dB/m
and the effective refractive index difference is larger than 10-3.The dispersion slope values ranges from-0.012 36ps/(nm2·km)to 0.321 91ps/(nm2·km)in the C band.The dispersion slope value in 1 550 nm of each mode are 0.093 80ps/(nm2·km)、0.038 97ps/(nm2·km)
which means that the PCF can achieve dispersion-flattened transmission in the wavelength range of communication.
关键词
少模光纤光子晶体光纤有限元法色散
Keywords
few-mode fiberphotonic crystal fiberfinite element methoddispersion