Index profile of proton-exchanged waveguides in LiNbO/sub 3/ using pyrophosphoric acid |
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| Authors: | Pun E.Y.B. Kong T.C. Chung P.S. Chan H.P. |
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| Affiliation: | Chinese Univ. of Hong Kong, Hong Kong; |
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| Abstract: | A systematic study was carried out on proton-exchanged LiNbO/sub 3/ optical waveguides using pyrophosphoric acid. A maximum surface index increase of 0.145 was measured at 0.633 mu m for z-cut substrates. The index profile could be accurately modelled by a polynomial expression of simply by a 'truncated' step-index profile.<> |
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