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Chromatic dispersion (CD) equalisation will be discussed in this paper with an alternative method, cascaded parallel optical all pass filter (Cp-OAPF), to equalise within a 10 Gb/s single mode fibre (SMF). The CD is due to the phase delay within the SMF. The Cp-OAPF acts as a phase equaliser which will invert the effect of SMF phase delay. Simulation results at BER of 10−9 showed that the proposed...
This paper presents an alternative method to equalise chromatic dispersion (CD) within a high speed single mode fibre (SMF). The CD is due to the phase delay within the SMF. The CD contributes to the degradation of the quality of the optical pulse propagating in the SMF at high speed which results in pulse spreading. This phenomena will lead to inter-symbol interference (ISI), thus increasing the...
Shortened pulse position modulation (SPPM) is a new modulation format that has recently been proposed for underwater wireless optical communication. A full spectral characterisation of SPPM is considered and original expressions are presented, which are validated numerically for predicting both the continuous and the discrete spectrum.
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