Title :
True time delay integrated optical RF phase shifters in lithium niobate
Author_Institution :
Lehrstuhl fur Hochfrequenztech., Dortmund Univ.
fDate :
11/6/1997 12:00:00 AM
Abstract :
Integrated optical true time delay two bit phase shifters for 10 GHz RF frequency have been fabricated on Z-cut LiNbO3. Cascaded optical delay lines are connected by crossed-waveguide switches in a scaleable design. The devices exhibited 8-9 dB fibre-coupled insertion loss at 1.3 μm wavelength. The RF phase shifts were measured in the 9-12.5 GHz range
Keywords :
electro-optical switches; integrated optics; lithium compounds; microwave phase shifters; optical delay lines; optical fibre losses; 1.3 micrometre; 8 to 9 dB; 9 to 12.5 GHz; LiNbO3; cascaded optical delay lines; crossed-waveguide switches; fibre-coupled insertion loss; integrated optical RF phase shifters; scaleable design; time delay;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19971208
