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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 16, Iss. 3 — Mar. 1, 1999
  • pp: 401–406

Preparation of proton-exchange LiNbO3 waveguides in benzoic acid vapor

J. Rams and J. M. Cabrera  »View Author Affiliations

JOSA B, Vol. 16, Issue 3, pp. 401-406 (1999)

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Either α- or β-phase LiNbO3 guides of high quality were obtained by proton exchange of x- and z-cut substrates in benzoic acid vapor. The second-harmonic-generation efficiency of z-cut samples was found to be similar to that of the substrate for 0.01Δne0.1.x-cut samples show second-harmonic-generation efficiency that is good for Δne0.03 and negligible for Δne0.03. All cuts exhibit low optical losses (<0.35 dB cm-1) for Δne0.03 and Δne0.09 and a high optical damage threshold for Δne>0.03.

© 1999 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.3130) Integrated optics : Integrated optics materials
(130.3730) Integrated optics : Lithium niobate
(130.4310) Integrated optics : Nonlinear
(160.2100) Materials : Electro-optical materials
(160.4330) Materials : Nonlinear optical materials

J. Rams and J. M. Cabrera, "Preparation of proton-exchange LiNbO3 waveguides in benzoic acid vapor," J. Opt. Soc. Am. B 16, 401-406 (1999)

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