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Microwave generation for bidirectional broadband mobile communications using optical sideband injection locking



Electronics Letters 33 (1997), No.16, pp.1395-6
ISSN: 0013-5194
Journal Article
Fraunhofer HHI ()
injection locked oscillators; microwave generation; mobile communication; quadrature phase shift keying; bidirectional broadband mobile communications; optical sideband injection locking; oqpsk-signal transmission; optical heterodyning; microwave carriers; downlink data; local oscillator signal; uplink mixer; base station

Bidirectional 140 Mbit/s OQPSK-signal transmission with remotely generated microwaves applying optical heterodyning is reported. Two microwave carriers in the 18-20 GHz band are generated: one modulated by the downlink data, the other unmodulated and used as the local oscillator signal for the uplink mixer in the base station.