Title :
Anomalies of refractive-index profiles observed directly in annealed proton-exchanged, X-cut LiTaO3 waveguides
Author :
Maring, D.B. ; Tavlykaev, R.F. ; Ramaswamy, R.V.
Author_Institution :
Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA
fDate :
8/1/1996 12:00:00 AM
Abstract :
Depth profiles of planar annealed proton-exchanged waveguides in X-cut LiTaO3 are directly measured using a reflectivity technique. Buried extraordinary profiles are confirmed to exist for short annealing times (⩽20 min) and exhibit strong dispersion; these are measured for the first time. The profiles for ordinary polarisation show a substantial index decrease
Keywords :
annealing; ion exchange; lithium compounds; optical dispersion; optical fabrication; optical planar waveguides; reflectivity; refractive index; 20 min; LiTaO3; annealing times; buried extraordinary profiles; dispersion; index decrease; planar annealed waveguides; proton-exchanged X-cut waveguides; reflectivity technique; refractive-index profiles;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960996