Title :
Optically controlled coplanar transmission lines for adaptive microwave signal processing applications
Author :
Kremer, R. ; Jäger, D.
Author_Institution :
Sonderforschungsbereich, Gerhard-Mercator-Univ. GH Duisburg Univ., Germany
Abstract :
Optically controlled wave propagation effects in coplanar transmission lines on semiconducting substrate are reviewed in this paper. In particular, distributed Schottky photodiodes are examined where a depletion layer is formed below the center conductor. Experimentally, phase shifts as high as 110 deg/mm at 9 GHz using an optical power of merely 50 μW are obtained for an optimized InAlAs-InGaAs-InP heterostructure
Keywords :
III-V semiconductors; MMIC phase shifters; Schottky diodes; adaptive signal processing; aluminium compounds; coplanar waveguides; delay lines; gallium arsenide; indium compounds; photodiodes; semiconductor heterojunctions; waveguide attenuators; 50 muW; 9 GHz; InAlAs-InGaAs-InP; InP; InP substrate; SHF; Schottky contact CPW; adaptive microwave signal processing; coplanar transmission lines; depletion layer; distributed Schottky photodiodes; microwave delay lines; optically controlled wave propagation effects; optimized heterostructure; semiconducting substrate; Adaptive control; Adaptive optics; Conductors; Coplanar transmission lines; Optical control; Optical propagation; Photodiodes; Programmable control; Semiconductivity; Substrates;
Conference_Titel :
Semiconductor Conference, 1995. CAS'95 Proceedings., 1995 International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-2647-4
DOI :
10.1109/SMICND.1995.495070
