Simulation and design of EDFAs for long-haul soliton based communication systems

The simulation of EDFA using a long span of Er-doped fiber for the amplification of optical solitons is presented. Various parameters can be varied as a control to optimize soliton amplification. Instead of using lumped amplifiers, a distributed amplification is employed. It is possible to design EDFA for different input pulse widths depending upon the dispersion and loss of the fiber. The effective values of the pump range, fiber dispersion, doping concentration have been varied with in the recommended criterion of the on going progress in carrying out data successfully to the horizon limits. To study amplification, the FWHM of solitons is considered in pica second range only as ultra short soliton pulses suffer from various other effects of higher order dispersion, Raman effect and SSFS. The simulations worked out in this perspective are providing leverage to the existing research on conventional techniques of the signal amplification, development of the EDFAs based on the previous research, as the soliton exploitation approach for the development of EDFAs lead to cope with the long standing desire of long haul communication to pierce through the horizon. The results obtained provide a future guideline to implement them practically. The new systematic trends is available for the researchers to go ahead to explore the hidden nooks of the future optical development.