Baack, C.C.BaackElze, G.G.ElzeEnning, B.B.EnningWalf, G.G.Walf2022-03-022022-03-021978https://publica.fraunhofer.de/handle/publica/169079For an optical transmission experiment, several GaAlAs DH-lasers from manufacturers in Japan, USA and Germany were tested with respect to their modulation performances in the Gbit/s range. It was found that most of the studied lasers could be modulated in the Gbit/s range with neglectable pattern effect. Furthermore some lasers showed a singlemode dynamic spectrum when modulated at 1.12 Gbit/s with a light pulse power output of several milliwatts. The experiment and results are discussed in this paper.enmodulationsemiconductor junction lasersgaalas lasersoptical transmissionmodulation performancessinglemode dynamic spectrum621Modulation behaviour in the Gbit/s range of several GaAlAs lasersjournal article