Simulative performance signature of advanced modified duobinary return to zero modulation techniques management with all optical doped fiber amplifiers in high speed optical modulated systems
Ramachandran Thandaiah Prabu, Govindanaidu Damodaran Vignesh, Mohanraj Ramya, Rosi Asirvatham, Kannan Krishnan, Merline Arulraj, Alaa Hosny MahrousAbstract
This paper has demonstrated the advanced modified duobinary return to zero modulation techniques management with all optical doped fiber amplifiers in high speed optical modulated systems. The dispersion compensated fiber is used for the management of the dispersion effects in single mode fibers for ultra-high system data rates. The total optical fiber system data rates product can be enhanced by management of both advanced transmission modulation techniques and doped fiber optical amplifiers. The employment of various doped fiber amplifiers that are namely Praseodymium (Pr) doped fiber amplifiers, Erbium–Ytterbium (Er–Yb) doped fiber amplifiers and Thulium (Tm) doped fiber amplifiers for optical fiber communication system enhancement. Advanced modulation schemes such as carrier suppressed return-to-zero (CSRZ), duobinary return-to-zero (DRZ) and modified duobinary return-to-zero (MDRZ) that is used for the optical fiber system improvement. It is observed that the total output optical power, total amplifier gain and the total amplifier noise figure can be optimized with Pr doped fiber amplifiers. Tm doped fiber amplifiers has the worst amplifier noise figure with the increase of the fiber link length.