A highly nonlinear photonic quasi-crystal fiber with low confinement loss and flattened dispersion
A novel photonic quasi-crystal fiber with dual concentric core structure is presented. Nonlinear coefficient larger than 33W?1km?1, dispersion slope of 8.510?3ps/nm2/km at 1550nm. Flattened dispersion of 03.4ps/nm/km, confinement loss of 10?7dB/m from 1373 to 1627nm. Two zero dispersion wavelengths can be achieved by the proposed design. The influence of deviation of each air hole diameter within 3% is discussed to verify the robustness.
photonic quasi-crystal fiber low confinement loss flattened dispersion highly nonlinear fiber