Abstract
In this paper, a dual-concentric-core photonic quasicrystal fiber (DCC–PQF) with a 12-fold symmetric structure has been designed to compensate for dispersion effects. To this end, a new design based on modifying the positions of the nearest air holes to the central core has been proposed for dispersion compensation, in which ultra-high negative dispersion of about at 1.55 μm can be estimated. In addition, by optimizing structural parameters, high negative dispersion for the proposed DCC–PQF has been predicted, approximately at around 1.55 μm, with an FWHM about 42 nm in the wavelength ranges between 1529 and 1571 nm, which entirely covers the C telecommunication band. Furthermore, a dispersion relation dependency on hole-to-hole spacing, first ring air hole diameters, as well as diameter of the air holes in the outer core and its position, has been investigated and discussed in detail.
© 2014 Optical Society of America
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