Abstract
This work is about design & development of an optical transmission system in optical fibre. The optical fibre is always used in telecommunication system because of its characteristics which include small size or dimension, low loss and low interferences from outside environment. There are various types of optical fibre, the Fibre Bragg Grating (FBG) is commonly chosen as important components to compensate the dispersion in optical communication system. FBG is very simple, has low cost filter for wavelength selection and low insertion loss, it has also customized reflection spectrum and wide bandwidth. Our work describes the use of pre & post FBG EDFA (Erbium doped fibre amplifier.) to achieve high power through put at receiver side. The proposed optical communication system is simulated on opitsystem optisim simulator. By simulating the proposed mode of communication system & using the most appropriate settings of the system, which settings of the system which include input power (dBm), fibre cable length (km) and attenuation coefficient (dB/km) at optical cable , different parameters will be investigated which include output power (Watt), noise figure (dB), and gain (dB) at receiver. However the frequency at transmitter (GHz) and cut-off frequency (Bit rate Hz) at receiver will be fixed as initial setting for the simulation. .
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