Title :
Improved RF performance of a comb-based microwave photonic filter using a balanced photodetector
Author :
Hyoung-Jun Kim ; Leaird, Daniel E. ; Weiner, Andrew M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
A comb-based microwave photonic filter using a balanced photodetector (BPD) has been experimentally demonstrated to improve radio frequency (RF) performance including RF gain and noise figure (NF). We compare the RF performance of schemes using a single photodetector (SPD) and BPD. Using the BPD, we achieve a RF gain of -10.3 dB and a NF of 29 dB at a RF center frequency of 3.33 GHz; these results are improved by approximately 6 and 21 dB, respectively, compared to the SPD case.
Keywords :
microwave filters; microwave photonics; optical filters; optical noise; photodetectors; radiofrequency filters; BPD; RF center frequency; RF gain; RF performance; balanced photodetector; comb-based microwave photonic filter; noise figure; radiofrequency performance; Microwave filters; Microwave photonics; Optical attenuators; Optical fiber filters; Radio frequency; Balanced photodetector; microwave photonic filtering; optical frequency comb generation;
Conference_Titel :
Microwave Photonics (MWP), 2013 International Topical Meeting on
Conference_Location :
Alexandria, VA
DOI :
10.1109/MWP.2013.6724024
