Title :
Controllable microwave phase inverter using two cascaded electro-optic intensity modulators
Author :
Zhang, Fang ; Fu, Songnian ; Wu, Junyong ; Xu, Ke ; Sun, Xinghua ; Li, Wenyuan ; Li, Yuhua ; Hong, Xia ; Zuo, Yi ; Lin, James ; Shum, Ping
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
A controllable microwave phase inverter with ?? phase shifting is proposed using two cascaded electro-optic intensity modulators. The phase inversion of a 10 GHz radio frequency signal controlled by a 1 Gbit/s electrical signal is experimentally demonstrated. The bandwidth of the input microwave signal and the speed of the electrical control signal can be significantly extended thanks to the high modulation speed of the electro-optic modulators.
Keywords :
cascade control; electro-optical modulation; intensity modulation; microwave circuits; phase shifters; ?? phase shifting; bit rate 1 Gbit/s; cascaded electro-optic intensity modulators; controllable microwave phase inverter; electrical control signal; frequency 10 GHz; radio frequency signal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3601
