Title :
Optoelectronics for radio frequency conversion
Author :
Esman, Ronald D. ; Biernacki, Paul D. ; Nichols, Lee T. ; Matthews, Paul J.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
Frequency conversion is pervasive in the majority of radio transmitters or receivers. In receiver design, frequency conversion exploits heterodyne detection providing higher dynamic range, greater signal to noise ratios, and allows relaxed signal processing requirements. Optoelectronic frequency conversion using cascaded Mach-Zehnder modulators offers added advantages over traditional diode microwave mixers including exceptional RF/LO isolation, true wide band operation (DC to 40 GHz for RF, LO and IF), immunity to electromagnetic interference, and the ability to remote the RF or LO signals great distances with low loss. Here we discuss the performance of broad band optoelectronic frequency converters using cascaded Mach-Zehnder modulators
Keywords :
amplitude modulation; electro-optical modulation; heterodyne detection; intermodulation distortion; microwave frequency convertors; microwave links; microwave photonics; 40 GHz; EMI immunity; RF conversion; RF/LO isolation; cascaded Mach-Zehnder modulators; directional coupler; heterodyne detection; higher dynamic range; intermodulation distortion; noise figure; optical downconverting link; optical microwave downconversion; optoelectronic frequency conversion; radio receivers; radio transmitters; true wide band operation; Diodes; Dynamic range; Frequency conversion; Mixers; Radio frequency; Radio transmitters; Receivers; Signal design; Signal processing; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS '98. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4947-4
DOI :
10.1109/LEOS.1998.739555
