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-4 place Jussieu-BP 252-75252 Paris Cedex 05-France. Tel: +33 1 44 27 74 59 - Fax: +33 1 44 27 46 62. E-mail: charlotte.canseliet@lis.jussieu.fr
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 :
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
Conference_Location :
Munich, Germany
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMA.2003.340941
