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1997
Conference Paper
Title
Low phase noise microwave and millimeter-wave generation and transmission using optical heterodyning
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.
Keyword(s)
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 receive
millimeter-wave generation
low phase noise
optical heterodyning
millimeter-wave transmission
microwave transmission
error-free transmission experiments
optically generated millimeter-waves
millimeter-wave signals
quartz accuracy
bidirectional transmissions
millimeter-wave carriers
radio link
mobile receiver
down link
uplink-millimeter-wave mixer
base station
pico-cellular broadband mobile communication systems
qpsl
laser diodes
18 GHz
60 to 70 GHz
140 mbit/s