Effect of annealing on proton-exchanged LiNbO3 waveguides fabricated using stearic acid

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)806-810
Journal / PublicationZhongguo Jiguang/Chinese Journal of Lasers
Issue number9
Publication statusPublished - Sep 1996
Externally publishedYes


Characterization of proton-exchanged optical planar waveguides in z-cut LiNbO3 fabricated using stearic acid and effects of annealing on the index profile, the waveguide depth, the surface index changed and propagation loss have been studied systematically. Waveguide propagation losses decrease with annealing time and the variation in the surface refractive index and waveguide depth with annealing time follows a power law relationship. The annealing process is shown to be an effective means to improve and modify waveguide properties.