Grosskopf, G.G.GrosskopfLudwig, R.R.LudwigWeber, H.G.H.G.Weber2022-03-082022-03-081988https://publica.fraunhofer.de/handle/publica/3154502-s2.0-0024123565In 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.eninterference (signal)optical linksphase shift keyingsemiconductor junction laserscascaded inline optical amplifiersmultichannel coherent optical transmissiondpsk-systemscascaded optical amplifierschannel interference30 db621Cascaded in-line optical amplifiers in multichannel coherent optical transmissionconference paper