Title :
Proton-exchange optical waveguides in Z-cut LiNbO3 using toluic acid
Author :
Loi, K.K. ; Pun, E.Y.B. ; Chung, Pil Seung
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
fDate :
3/12/1992 12:00:00 AM
Abstract :
Proton-exchanged planar waveguides were demonstrated in Z-cut LiNBO3 using toluic acid as a new organic proton source. These waveguides exhibit a propagation loss of around 1 dB/cm, and a step refractive index profile with an index increase of 0.124 measured at 0.663 mu m. The diffusion rate was found to be lower than those obtained using the popular benzoic and phosphoric acids.
Keywords :
integrated optics; ion exchange; lithium compounds; optical losses; optical waveguides; optical workshop techniques; refractive index; 0.663 micron; LiNbO 3; Z-cut planar waveguides; diffusion rate; integrated optics; organic proton source; propagation loss; proton exchanged optical waveguides; step refractive index profile; toluic acid;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920345
