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Cascaded in-line optical amplifiers in multichannel coherent optical transmission

: Grosskopf, G.; Ludwig, R.; Weber, H.G.

IEE Electronics Division:
Fourteenth European Conference on Optical Communication, ECOC 88. Vol.1 : 11 - 15 September 1988
London: IEE, 1988 (IEE conference publication 292)
ISBN: 0-85296-369-6
European Conference on Optical Communication (ECOC) <14, 1988, Brighton>
Conference Paper
Fraunhofer HHI ()
interference (signal); optical links; phase shift keying; semiconductor junction lasers; cascaded inline optical amplifiers; multichannel coherent optical transmission; dpsk-systems; cascaded optical amplifiers; channel interference; 30 db

In coherent optical two-channel DPSK-systems containing cascaded optical amplifiers various sources of channel interference are investigated. The authors show that the 30 dB-gain of the optical amplifiers can be fully converted into an increased transmission span.