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Optical millimeter-wave systems for broadband mobile communications, devices and techniques

: Braun, R.-P.; Grosskopf, G.


Institute of Electrical and Electronics Engineers -IEEE-:
Accessing, transmission, networking. Proceedings : International Zurich Seminar on Broadband Communications, February 17 - 19, 1998, ETH Zürich, Switzerland
Piscataway, NJ: IEEE, 1998
ISBN: 0-7803-3893-6
ISBN: 0-7803-3894-4
International Zurich Seminar on Broadband Communications (IZS) <15, 1998, Zürich>
Conference Paper
Fraunhofer HHI ()
broadband networks; cellular radio; optical fibre networks; optical modulation; optical transmitters; quadrature phase shift keying; radio equipment; semiconductor lasers; optical millimeter-wave systems; broadband mobile communications; devices; techniques; future mobile communication; radio link frequency; cellular systems; cost-effective network implementation.; low-loss fiber-based data transmissio; millimeter-wave generation; low-cost base stations; optical generation; low-phase noise millimeter-wave signals; offset quadrature phase shift keying; oqpsk; quartz stable millimeter-waves; heterodyning; 140 mbit/s; 18 to 20 GHz; 60 GHz

Future 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.