Dispersion Flattened Optical Fiber Design for Large Bandwidth and High-speed Optical Communications Using Optimization Technique

In this paper, design of the RII triple-clad structure as a dispersion flattened optical fiber including small pulse broadening factor as well as small dispersion and its slope applicable in broadband and fast communication is considered. The proposed optimization technique is based on the Genetic Algorithms (GA) consisting suitable fitness function for each application. The putting forward design method introduces the pulse broadening factor (σ/σ0) about 1.0016 after 200 Km propagation at the zero dispersion wavelength that is so excellent compared to the structure (1.2794) reported in [2] recently. Meanwhile, the proposed structure provides high bit rate (more than 197.8 Gb/sec at 100 Km), large dispersion length (larger than 17400 Km), uniform dispersion slope ([0.04, −0.08] ps/Km/nm2) and broad bandwidths as well as small and uniform dispersion (smaller than 2.02 ps/Km/nm) at [1.55–1.7]μm wavelength interval Corresponding author: M. Savadi-Oskouei (morteza [email protected]).