Experimental Optical Fibre Digital Pulse-Position Modulation System

N. M. Calvert, M. J.N. Sibley, R. T. Unwin

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Practical measurements on a digital PPM system handling 8Mbit/s PCM data show good correlation with theoretical results obtained from a computer model of the system. It is confirmed that there exists an optimum number of time slots which maximises the receiver sensitivity, and that a digital PPM system can offer an improvement of 4-2 dB over an equivalent binary PCM system when the fibre bandwidth is several times that required by PCM.

Original languageEnglish
Pages (from-to)129-131
Number of pages3
JournalElectronics Letters
Issue number2
Publication statusPublished - 21 Jan 1988


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