DefinePK

Abstract

The scope of this paper is to analyze ASE (Amplified Spontaneous Emission ) noise power using the simulation model EDFA (Erbium Doped Fiber Amplifier) cascaded with EYCDFA (erbium-ytterbium co-doped fiber amplifier) in 4-16 channels of transmitters combined by optical multiplexer and sent the output to EDFA in series with EYCDFA in single backward pumping using the wavelength of 980nm. This simulation model performance was analyzed with the parameters Gain, forward output signal power and ASE noise was measured and the values are tabulated. The simulation model consists of 2- 16 channels of RZ transmitter and 2- 16 channels of NRZ transmitter’s outputs were multiplexed with optical multiplexer and multiplexed signal sent to cascaded Erbium amplifiers with pumping CW (continuous wave) Laser source with wavelength 980nm and Filter. The resulting model accurately represents EDFA Gain and output signal power and ASE noise. Simulation results shows that by choosing careful fiber length 20m and pump power 1mw in single pumping gives ASE noise 0.005mw using EDFA and EYCDFA gives zero mill watts.