1 November 1996 Chromatic dispersion penalty in lightwave EDFA PPM systems
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An optically preamplified pulse position modulation (PPM) system operating at 622 Mbit/s and (lambda) equals 1.53 micrometers is analyzed and shown to offer a sensitivity benefit of 9.2 dB over an equivalent OOK system. Fiber chromatic dispersion is taken into account and is used to estimate the received pulse shape. Pulse dispersion can potentially induce a significant performance penalty in PPM systems due to the temporal nature of the PPM format. The results show that for a transmitted pulse of duration 80 ps, the received pulses have full width half maximum of 160 ps and 320 ps for fiber lengths equaling 120 km and 240 km respectively. The system sensitivity degradation due to dispersion is explicitly evaluated. It is shown that a sensitivity penalty of up to 5 dB can be incurred over the transmission spans considered.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Hussain, A. Hussain, Jaafar M. H. Elmirghani, Jaafar M. H. Elmirghani, Robert A. Cryan, Robert A. Cryan, } "Chromatic dispersion penalty in lightwave EDFA PPM systems", Proc. SPIE 2919, All-Optical Communication Systems: Architecture, Control, and Network Issues II, (1 November 1996); doi: 10.1117/12.256347; https://doi.org/10.1117/12.256347

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