Recent development of proton-exchanged waveguides and devices in lithium niobate using phosphoric 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)2-13
Journal / PublicationProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1991
Externally publishedYes


TitleIntegrated Optics and Optoelectronics II
CitySan Jose, CA, USA
Period17 - 19 September 1990


Low loss proton-exchanged optical waveguides using phosphoric acid exhibit properties which are different from those using benzoic acid. A maximum surface index increase of 0.145 was measured for z-cut substrate at 0.633μm, and the index profile could be accurately modelled by a polynomial expression. This paper will review the development of proton-exchanged waveguides and devices using this acid.