Gain simulation of erbium-doped fiber amplifier

The invention of the fiber optic technology has made the transmission of data more reliable and able to operate at large bandwidth and low transmission loss. However, regeneration is still needed to compensate the transmission losses in long haul optical transmission systems. In current communication systems, this requires the use of complex and expensive optoelectronic regenerators. An alternative to opto-electronic regenerators is the erbium doped fiber amplifier (EDFA), first reported in 1987 to amplify optical signals directly thus creating new opportunities in the field of all-optical photonics communication systems. The work conducted in this research is to model an EFDA efficiently. The simulation result obtained from the model at various operating conditions is compared with experimental results from a previous project. Comparison shows that the model has a gain characteristic similar to the experimental result with a gain difference of 2-4 dB