Title :
A 6 to 11 GHz all-optical image rejection microwave downconverter
Author :
Strutz, Shane J. ; Williams, Keith J.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
An all-optical image-rejection downconverter capable of downconverting 6-11 GHz RF signals into an IF band from 2 to 3 GHz is presented. RF signals received by the system are used to generate new optical wavelengths. These new wavelengths are filtered and used to downconvert the RF signals into the IF band through heterodyne detection. The system exhibited better than 20 dB of image rejection over its bandwidth and the spurious signals were more than 40 dB below the downconverted signal power
Keywords :
heterodyne detection; microwave frequency convertors; microwave photonics; optical modulation; 2 to 3 GHz; 6 to 11 GHz; IF band; all-optical image rejection microwave downconverter; downconverted signal power; heterodyne detection; spurious signals; Optical fiber couplers; Optical fiber polarization; Optical filters; Optical mixing; Optical modulation; Optical signal processing; Optical transmitters; RF signals; Radio frequency; Stimulated emission;
Conference_Titel :
Microwave Photonics, 2000. MWP 2000. International Topical Meeting on
Conference_Location :
Oxford
Print_ISBN :
0-7803-6455-4
DOI :
10.1109/MWP.2000.889790
