Abstract
A coaxial dual-core wavelength-tunable dispersion compensation photonic crystal fiber (WT-DC-PCF) is designed in this paper. The tunable range of 1512–1587 nm with an ultrahigh negative dispersion of − 27315.76 p s / ( n m ⋅ k m ) at 1550 nm has been obtained simultaneously by filling the temperature-sensitive material into the air holes of the WT-DC-PCF. The full width at half-maximum is up to 12.4 nm, and a low confinement loss is always maintained. In addition, the phase-matching wavelength is basically linear with the temperature, which can be accurately adjusted to 1550 nm. Therefore, the proposed WT-DC-PCF is able to be used in achieving complete dispersion compensation in communication systems.
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