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Design tools for circular PCF have been developed to analyze the vector modes by giving the modal map of the cutoff condition of eigenmodes and colormap of minimum effective refractive index separation between different eigenmodes. We also analyze the effect of fiber parameters for mode quality.
We proposed a new kind of circular shaped photonic crystal fiber, which can support large number of good quality orbital angular momentum (OAM) modes, with good features of large separation of effective indices, low confinement loss, flat chromatic dispersion and small nonlinear coefficient, over wide bandwidth. With all these good features, the proposed circular photonic crystal fiber could be a...
We proposed a new circular photonic crystal fiber (C-PCF), which can support 14 orbital angular momentum (OAM) modes transmission, with the good features of wide bandwidth, low confinement loss, and all OAM modes at the same size. At 1.55 $\mu \text{m}$ , the designed C-PCF has a very low confinement loss of $3.434\times 10^{-9}$ dB/m for HE41 mode and a relatively low nonlinear coefficient of...
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