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1998
Journal Article
Title
Optical microwave generation and transmission experiments in the 12- and 60-GHz region for wireless communications
Abstract
Experiments on the optical generation and transmission of millimeter-wave radio signals are reported. The millimeter-wave signals are generated by heterodyning the optical spectral lines of a mode-locked laser (MLL) or of two or more semiconductor lasers at an optic/millimeter-wave converter (OMC). 70-, 140-, and 155-Mb/s data transmission experiments have been carried out successfully in optical single-channel and multichannel systems at radio frequencies of 12 GHz and 58-70 GHz. Bit-error-rate measurements yielded error-free transmission and no error floor was observed. A monolithically integrated tunable optical-signal source was developed and used for generating the millimeter-wave signals. This technology promises a high cost-saving potential for applications in radio-over-fiber systems.
Keyword(s)
data communication
laser mode locking
microwave links
millimetre wave generation
mobile radio
optical fibre communication
semiconductor lasers
optical microwave generation
optical microwave transmission
wireless communication
millimeter-wave radio signal
heterodyning
optical spectral line
mode-locked laser
semiconductor laser
optic/millimeter-wave converter
data transmission
single-channel system
multichannel system
bit-error-rate
monolithically integrated tunable optical-signal source
radio-over-fiber system
70 mbit/s
155 mbit/s
140 mbit/s
12 GHz
58 to 70 GHz