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Compensation of Phase Noise for Coherent Frequency Division Multiplexing in Optical Fiber Communications System | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 9, Issue 2, 2013, Pages 3-10 | ||
| Author | ||
| Jasim K.H | ||
| Abstract | ||
| In this paper, the Coherent Optical (CO) systems using Orthogonal Frequency Division Multiplexing (OFDM) for dispersion compensation is demonstrated. The Quadrature Amplitude Modulation QAM-OFDM transmitter signal was controlled by the Mach-Zender Modulator (MZM) which modulates the laser source with wavelength of 1550nm. The heterodyne receiver with dual-polarization optoelectronic down-converter is used to obtain good coherent detection without using optical phase locked loop. The analytical part was done using a software simulator. All the proposed system components were simulated using VPIphotonic simulation software for testing CO-OFDM system. The transmitted signal, optical spectrum, eye diagram and constellation diagram was obtained to evaluate system performance. | ||
| Keywords | ||
| Optical fibers; OFDM; Coherent communications; Heterodyne | ||
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