Fig. 1. Cross-section structure and equivalent refractive index distribution of all-solid dual-concentric-core microstructure fiber

Fig. 2. Variations in effective refractive index and dispersion of mode with wavelength (illustration is mode field distributions of two modes under different wavelengths)

Fig. 3. (a) Variation in effective refractive index of fundamental mode with n1 ; (b) variation in dispersion with n1 ; (c) variation in dispersion with r1

Fig. 4. (a) Variation in effective refractive index of fundamental mode with n2 ; (b) variation in dispersion with n2 ; (c) variation in dispersion with r2

Fig. 5. (a) Variation in effective refractive index of fundamental mode with n3 ; (b) variation in dispersion with n3 ; (c) variation in dispersion with r3

Fig. 6. (a) Variation in effective refractive index of fundamental mode with Λ ; (b) variation in dispersion with Λ

Fig. 7. (a) Variation in dispersion with wavelength when medium column radius of fiber 1 produces ±3% distortion; (b) variation in dispersion of fiber 2 in C band with wavelength and residual dispersion after compensation