Fig. 1. Cross section structure of microstructural photonic crystal fiber

Fig. 2. Relationship between the dispersion coefficient of the fundamental mode of the fiber and air aperture $d$

Fig. 3. Relationship between the nonlinear coefficient of the fundamental mode of the fiber and air aperture $d$

Fig. 4. Relationship between the confinement loss of the fundamental mode of the fiber and air aperture $d$

Fig. 5. Relationship between the dispersion of the fundamental mode of the fiber and the spacing Λ₂ of the air hole in the inner octagon

Fig. 6. Relationship between the nonlinear coefficient of the fundamental mode of the fiber and the spacing Λ₂ of the air hole in the inner octagon

Fig. 7. Relationship between the confinement loss of the fundamental mode of the fiber and the spacing Λ₂ of the air hole in the inner octagon

Fig. 8. Dispersion (a), nonlinear coefficient (b), confinement loss (c) curves of the fundamental mode of the octagonal photonic crystal fiber