Title :
Optically-controlled microwave phase-shifter
Author :
Szczepaniak, Zenon ; Galwas, Bogdan A.
Author_Institution :
Warsaw Univ. of Technol., Poland
fDate :
6/21/1905 12:00:00 AM
Abstract :
An optically controlled microwave phase shifter was designed and made for the investigation of a possibility of changing a microwave signal phase using a stand alone light source. The shifter was a reflection type circuit. A laser diode and an optical fibre were used to transmit the light steering a PIN photodiode. The photodiode was set to work together with a varactor diode in an indirect mode of operation. The reflection and the phase shift of the circuit vs. the optical power and the frequency relationships were measured and investigated
Keywords :
UHF phase shifters; microwave phase shifters; microwave photonics; optical fibres; p-i-n photodiodes; semiconductor lasers; varactors; 1.3 mum; 800 to 1000 MHz; PIN photodiode; binary PSK modulator; indirect operation mode; laser diode; microwave signal phase changing; optical fibre; optically-controlled microwave phase-shifter; reflection type circuit; stand alone light source; varactor diode; Circuits; Diode lasers; Light sources; Lighting control; Optical control; Optical design; Optical fibers; Optical reflection; Phase shifters; Signal design;
Conference_Titel :
High Performance Electron Devices for Microwave and Optoelectronic Applications, 1999. EDMO. 1999 Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-5298-X
DOI :
10.1109/EDMO.1999.821500
