Title :
Optical FM-CW signal generation for millimeter-wave and optical imaging
Author :
Kanno, Atsushi ; Kawanishi, Tetsuyas
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan
Abstract :
Optical frequency-modulated continuous-wave (FM-CW) signal generation based on a high-precision optical modulation technique is successfully demonstrated for full-band millimeter-wave (MMW) radar in the W-band (75-110 GHz) and detection of an optical fiber cut by optical frequency domain reflectometry. The optical frequency up-converter based on radio-over-fiber technology creates a high-speed pulse of the FM-CW signal with broad bandwidths, and the signal degradation agrees with theoretically estimated values. The dual purpose of the optical FM-CW signal for MMW and optical imaging will be useful for a distributed antenna radar system with a MMW signal and sensing of the optical distribution network.
Keywords :
frequency modulation; microwave photonics; microwave reflectometry; millimetre wave generation; optical frequency conversion; optical images; optical modulation; optical radar; radio-over-fibre; MMW radar; MMW sensing; MMW signal; W-band; distributed antenna radar system; frequency 75 GHz to 110 GHz; full-band millimeter-wave radar; high-precision optical modulation technique; high-speed pulse; millimeter-wave imaging; optical FM-CW signal generation; optical distribution network; optical fiber; optical frequency domain reflectometry; optical frequency up-converter; optical frequency-modulated continuous-wave signal generation; optical imaging; radio-over-fiber technology; signal degradation; Bandwidth; Optical device fabrication; Optical harmonic generation; Optical imaging; Optical pulses; Optical sensors; Radar;
Conference_Titel :
Microwave Photonics (MWP), 2013 International Topical Meeting on
Conference_Location :
Alexandria, VA
DOI :
10.1109/MWP.2013.6724031
