Analysis of optical amplifiers with different parameters

Abstract

In any fibre optic communication systems the transmission distance is limited by the fibre losses. The recent approach to overcome the loss limitation is the use of optical amplifiers which ensures the accomplishment of fibre optic communication systems for long distances efficiently. Different categories of optical amplifiers found for widespread use such as Erbium Doped Fibre Amplifier (EDFA)], Ytterbium Doped Fibre Amplifier (YDFA). We consider about EDFA and YDFA which are made by doping the fibre core with rare-earth elements of Erbium and Ytterbium respectively. The gain of EDFA is 10dB, 15dB, 20dB and 25dB with fiber length at 5m, 7.5m, 10m and 12.5 m respectively and the gain of YDFA is 15dB, 20dB, 30dB and 30dB with fiber length at 0.5m, 0.75m, 1.0m and 1.25 m respectively. Amplifier performance improves with increase with fiber length.