Title :
Fabrication of low-loss titanium-diffused LiNbO3 waveguides using a closed platinum crucible
Author :
Never, A. ; Pohlmann, Tim
Author_Institution :
Universitÿt Dortmund, Lehrstuhl fúr Hochfrequenztechnik, Dortmund, West Germany
Abstract :
A new diffusion technique for the reliable fabrication of low loss Ti:LiNbO3 waveguides is reported. During diffusion, the LiNbO3 sample is placed in a closed platinum crucible where the sample itself serves as an Li2O source to eliminate the appearance of unwanted surface waveguides. The influence of the diffusion conditions (temperature, addition of water vapour) on the waveguide performance is discussed.
Keywords :
integrated optics; lithium compounds; optical waveguides; optical workshop techniques; titanium; LiNbO3:Ti optical waveguides; Pt crucible; addition of water vapour; diffusion conditions; diffusion technique; low loss waveguides; reliable fabrication; strip waveguides; surface waveguide elimination; temperature; waveguide performance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870825
