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Effect of semiconductor laser noise on coherent optical OFDM systems
thesis
posted on 2017-02-17, 03:12 authored by Al-Aubaidy, ZaidOrthogonal frequency division multiplexing (OFDM) is a modulation/multiplexing method that has many advantageous when it is employed in optical fiber communications. However, the OFDM signal is very sensitive to semiconductor laser’s phase noise that requires either to use a very stable semiconductor laser with a narrow linewidth, or to equalize the phase noise effect before or after demodulation. This thesis presents an in-depth analysis of the long-haul coherent optical OFDM (CO-OFDM) link with pilot-aided feedforward loop (PA-FFL), which is used for pre-demodulation phase noise compensation. The thesis examines effect of large semiconductor laser noise on the OFDM’s performance yielding a new homodyne OFDM design, and showing the feasibility of this technique comparing with the conventional coherent OFDM system.
History
Campus location
AustraliaPrincipal supervisor
Arthur LoweryAdditional supervisor 1
Chris Davis, Riadh Al-MahaidiYear of Award
2012Department, School or Centre
Electrical and Computer Systems EngineeringCourse
Doctor of PhilosophyDegree Type
DOCTORATEFaculty
Faculty of EngineeringUsage metrics
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