Proton-exchange optical waveguides in Z-cut LiNbO/sub 3/ using toluic acid |
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| Authors: | Loi KK Pun EYB Chung PS |
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| Institution: | Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong; |
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| Abstract: | Proton-exchanged planar waveguides were demonstrated in Z-cut LiNBO/sub 3/ 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.<> |
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