Grosskope, G.G.GrosskopeLudwig, R.R.LudwigWeber, H.G.H.G.Weber2022-03-022022-03-021986https://publica.fraunhofer.de/handle/publica/174244Optical amplifiers for two-channel transmission are investigated. Intensity modulation in one channel causes crosstalk in the other channel via the change of the complex refractive index in the amplifier. The amount of crosstalk is connected with the linewidth enhancement factor alpha .encrosstalkoptical communication equipmentoptical modulationsemiconductor junction lasersintensity modulationoptical amplifierstwo-channel transmissioncomplex refractive indexlinewidth enhancement factor621384journal article