Title :
Low phase noise microwave and millimeter-wave generation and transmission using optical heterodyning
Author :
Braun, R.-P. ; Grosskopf, G. ; Rohde, D. ; Schmidt, F.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
Error-free 140 Mbit/s transmission experiments with optically generated millimeter-waves at frequencies at 18 and 60-70 GHz are reported. The millimeter-wave signals depict quartz accuracy and low phase noise <-80 dBc/Hz (@ 1 kHz). For bidirectional transmissions two millimeter-wave carriers one for the radio link to the mobile receiver (down link) and one for the uplink-millimeter-wave mixer in the base station are generated by optical heterodyning.
Keywords :
cellular radio; digital radio; land mobile radio; microwave generation; microwave links; millimetre wave generation; millimetre wave mixers; optical communication equipment; phase noise; quadrature phase shift keying; radio receivers; semiconductor lasers; 140 Mbit/s; 18 GHz; 60 to 70 GHz; QPSL; base station; bidirectional transmissions; down link; error-free transmission experiments; laser diodes; low phase noise; microwave generation; microwave transmission; millimeter-wave carriers; millimeter-wave generation; millimeter-wave signals; millimeter-wave transmission; mobile receiver; optical heterodyning; optically generated millimeter-waves; pico-cellular broadband mobile communication systems; quartz accuracy; radio link; uplink-millimeter-wave mixer; Frequency; Microwave generation; Millimeter wave communication; Millimeter wave technology; Optical filters; Optical mixing; Optical noise; Optical receivers; Phase noise; Stimulated emission;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631575
