Comprehensive ReviewonUtilization of Optical Amplifier for the Deployment of High Speed Network

For the need of higher capacity and speed, optical fiber communication system is being extensively used all over the world for telecommunication, video and data transmission purposes. Optical communication systems are employed in order to meet the challenge of high bandwidth but signal attenuation is the major limitation. Electronic regeneration of signal is used to overcome the problem but it increases the cost and introduces the latency. To overcome this, electronic regeneration is replaced by optical amplifiers, which eliminates the need for costly conversion from optical to electric signal and vice versa. Here, performance of optical amplifiers has been analyzed. Various configurations of optical amplifiers have been experimented and simulated to study optical amplifier. Performance of Erbium Doped Fiber Amplifier has been analyzed for different lengths of fiber, radius of core and numerical aperture. Performance of Semiconductor Optical Amplifier has been analyzed for different injection currents for the same network. It is found that EDFA gives better performance with 18m fiber length, 2.2 micrometer core radius and 0.24 numerical aperture. SOA performs better with 0.05 mA injection current. Also, detailed analysis of the performance of both the amplifiers for a WDM network shows that EDFA gives favorable results than SOA. But, it is observed that with less number of channels, SOA gives better results. With the increased no. of channels, performance of SOAis degraded due to non-linearity induced. To overcome this, the RAMAN amplifier has been observed to be the best alternative and it is being further optimized using different parameters of RAMAN and EDFA such as Raman fiber length, Raman pump wavelength, Raman pump power, EDFA noise figure and EDFA output power. KeywordsEDFA, Raman amplifier, SOA, TDFA,