Braun, R.-P.R.-P.BraunGrosskopf, G.G.Grosskopf2022-03-092022-03-091998https://publica.fraunhofer.de/handle/publica/33177610.1109/IZSBC.1998.670244Future mobile communication systems have to meet the demands of broadband services. The 60 GHz-range is proposed for the radio link frequency in these cellular systems. The combination of optical techniques and millimeter-wave techniques at these frequencies is a promising approach for cost-effective network implementation. Besides the low-loss fiber-based data transmission, this combination allows simple millimeter-wave generation in low-cost base stations. In this paper different techniques of optical millimeter-wave generation are briefly reviewed and some experiments on the optical generation of low-phase noise millimeter-wave signals and offset quadrature phase shift keying (OQPSK) 140 Mbit/s-data transmission are reported. Quartz stable millimeter-waves at 18-20 GHz and in the 60 GHz band are remotely generated by heterodyning the signals of semiconductor lasers.enbroadband networkscellular radiooptical fibre networksoptical modulationoptical transmittersquadrature phase shift keyingradio equipmentsemiconductor lasersoptical millimeter-wave systemsbroadband mobile communicationsdevicestechniquesfuture mobile communicationradio link frequencycellular systemscost-effective network implementation.low-loss fiber-based data transmissiomillimeter-wave generationlow-cost base stationsoptical generationlow-phase noise millimeter-wave signalsoffset quadrature phase shift keyingoqpskquartz stable millimeter-wavesheterodyning140 mbit/s18 to 20 GHz60 GHz621conference paper