Title :
A novel optically-controlled microwave switch on semiconductor substrates for an ON/OFF ratio enhancement
Author :
Canseliet, C. ; Algani, C. ; Deshours, F. ; Alquie, G. ; Formont, S. ; Chazelas, J.
Author_Institution :
LISIF, Paris, France
Abstract :
A new structure of optically-controlled microwave switches is studied. By analyzing the equivalent schematic representation, the ON/OFF ratio of photoswitching systems is enhanced. A 15.4 dB ON/OFF ratio at a microwave frequency of 20 GHz was measured on Si samples with this new configuration, top-excited by a continuous laser diode at a 671 nm wavelength. Such efficient devices can be directly incorporated in passive and active microwave circuits to be switched with the advantages of optics.
Keywords :
elemental semiconductors; microwave circuits; microwave photonics; microwave switches; optical pumping; photonic switching systems; silicon; 20 GHz; 671 nm; Si; Si samples; active microwave circuits; continuous laser diode excitation; equivalent schematic representation; microwave frequency; on/off ratio enhancement; optically-controlled microwave switch; passive microwave circuits; photoswitching systems; semiconductor substrates; top-excited configuration; Diode lasers; Frequency measurement; Microwave circuits; Microwave devices; Microwave frequencies; Microwave measurements; Optical switches; Substrates; Switching circuits; Wavelength measurement;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1262270
