Transmission Performance Analysis of Three Different Channels in Optical Communication Systems

Abstract — In this paper will have done comparative performance study for three different optical channels system, all the channels operated at the same optical transmitted with non return-to-zero (NRZ). Performance study is done for variable ranges 1, 2, 3, 4, 5 km for the different channels. Single Mode Fiber, Free Space Optical (FSO) Channel and optical wireless communication Channel (OWC) is observed that at low bit rate (10Gb/s/ch) per channel multiplexed optical system shows the most performance signal power, maximum Q Factor, minimum BER and eye pattern degrades. Results reveal the ability of improving the optical communication characteristics by using these channel and the optimum effect concluded at (5km) length of optical rang by using the OWC channel i.e.the quality factor and signal power were increased to reach (1550.7) and (-1.08dBm) respectively and MIN. BER is zero. Index Terms — optic communication system, Free Space Optical, optical wireless communication