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Bit error analysis in a multimode communication system with optical transmission

: Hermes, T.; Hoen, B.; Kreutzer, H.W.; Schmidt, F.

Nachrichtentechnische Zeitschrift : NTZ 37 (1984), No.6, pp.358-63
ISSN: 0027-707X
Journal Article
Fraunhofer HHI ()
optical fibres; optical links; multimode communication; optical transmission; error rates; pseudo-random sequencing; data patterns; switching devices; repeaters; fibre

Instruments for measuring error rates and error structures were developed to determine the transmission quality of the digital multimode experiment system of the Heinrich-Hertz-Institut in Berlin. The instruments enable in-service operation with pseudo-random sequencing or set data patterns. The results of more than 1400 hours of tests of high-rate switching devices, 12 repeaters and 32 km of fibre lines showed a mean error rate of 10-9 (excluding errors appearing in bursts). The error structure analysis showed bit errors to occur predominantly in the optical transmission lines.