Title :
Optical microwave generation and transmission experiments in the 12- and 60-GHz region for wireless communications
Author :
Braun, Ralf-Peter ; Grosskopf, Gerd ; Heidrich, Helmut ; Von Helmolt, Clemens ; Kaiser, Ronald ; Krüger, Kirsten ; Krüger, Udo ; Rohde, Detlef ; Schmidt, F. ; Stenzel, Ralf ; Trommer, Dirk
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
fDate :
4/1/1998 12:00:00 AM
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
Keywords :
data communication; laser mode locking; microwave links; millimetre wave generation; mobile radio; optical fibre communication; semiconductor lasers; 12 GHz; 140 Mbit/s; 155 Mbit/s; 58 to 70 GHz; 70 Mbit/s; bit-error-rate; data transmission; heterodyning; millimeter-wave radio signal; mode-locked laser; monolithically integrated tunable optical-signal source; multichannel system; optic/millimeter-wave converter; optical microwave generation; optical microwave transmission; optical spectral line; radio-over-fiber system; semiconductor laser; single-channel system; wireless communication; Data communication; Laser mode locking; Masers; Microwave generation; Millimeter wave measurements; Millimeter wave technology; Optical mixing; RF signals; Semiconductor lasers; Signal generators;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
