Title :
Transient Effects in Optically Modulated Transmission Line Switches
Author :
Poesen, G. ; Stiens, J. ; Raskin, J.P. ; Bossche, M. Vanden ; Vounckx, R.
Author_Institution :
ETRO/LAMI, Vrije Univ. Brussel, Brussels
Abstract :
Transient effects of optically modulated RF-switches, measured with a large-signal vector network analyzer (LSNA) are discussed in this paper. Light is used to influence the characteristics of a coplanar waveguide (CPW) designed in a multilayer thin-film multichip module (MCM-D) technology on high resistivity silicon (HR-Si). Under static illumination of the CPW line, measurements demonstrate an insertion loss contrast of more than 35 dB above 20 GHz. With a modulated illumination input in the kHz-range, the study of the insertion and return loss show transient effects depending on the carrier frequency and substrate parameters. Time dependent S-parameters are used to study the switch behavior of the CPW line under illumination
Keywords :
coplanar waveguide components; integrated optics; microwave photonics; optical losses; optical modulation; optical multilayers; optical switches; optical waveguide components; RF-switches; Si; carrier frequency time dependent S-parameters; coplanar waveguide; high-resistivity silicon; insertion loss; large-signal vector network analyzer; multilayer thin-film multichip module technology; optically modulated transmission line switches; return loss; static illumination; transient effect; Coplanar transmission lines; Coplanar waveguides; Insertion loss; Lighting; Optical modulation; Optical switches; Optical waveguides; Power system transients; Transient analysis; Transmission lines; LSNA; Optoelectronic switches; transient effects;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346526
