Title :
Performance projection of electro-optical Modulators for radio-over-fiber in 2 GHz cryogenic front-end receivers
Author :
Menéndez, Oscar ; Collado, Carlos ; Mateu, Jordi ; Santos, María C. ; O´Callaghan, Juan M.
Author_Institution :
Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
6/1/2005 12:00:00 AM
Abstract :
We present the design of a Y-Ba-Cu-O on LiNbO3 cryogenic electro-optical modulator for analog 2 GHz applications. A resonant configuration of coplanar electrodes is considered, showing improvements with respect to both resonant Au electrodes and to traveling-wave electrodes, even beyond the traveling-wave theoretical maximum performance limit. The optimized layout is presented featuring a reduced length of 8.26 mm.
Keywords :
UHF devices; circuit layout; circuit optimisation; coplanar waveguide components; coplanar waveguides; electro-optical modulation; electrodes; modulators; radio receivers; superconducting microwave devices; superconducting resonators; 2 GHz; 8.26 mm; Au; Mach-Zehnder electro-optical modulator; YBCO; YBaCuO-LiNbO3; coplanar electrodes; coplanar waveguide; cryogenics; front-end receivers; high temperature superconductor; radio-over-fiber; resonant configuration; traveling-wave electrodes; Cryogenics; Electrodes; Electrooptic modulators; Electrooptical waveguides; Frequency; Optical modulation; Optical receivers; Optical waveguides; Resonance; Yttrium barium copper oxide; Coplanar waveguide; Mach-Zehnder electro-optical modulator; high temperature superconductor; resonance;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.850121
