Spectral Measurement of the Film-Substrate Index Difference in Proton-Exchanged LiNbO3 Waveguides
Applied Optics, Vol. 37, Issue 27, pp. 6463-6467 (1998)
http://dx.doi.org/10.1364/AO.37.006463
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Abstract
We report the spectral characterization of proton-exchanged lithium niobate (PE:LiNbO3) waveguides in terms of the variation of the refractive-index difference between the waveguiding layer and the substrate. The dispersion of the extraordinary refractive-index increase (δne) is measured from 405 to 1319 nm with several light sources. Two types of proton-exchanged waveguide, prepared under different conditions, are studied. These measurements should be of use in the optimization of PE:LiNbO3 waveguides for nonlinear optical applications, particularly in second-harmonic generation in the blue-green wavelength region.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(160.3130) Materials : Integrated optics materials
(160.3730) Materials : Lithium niobate
(160.4330) Materials : Nonlinear optical materials
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(230.7390) Optical devices : Waveguides, planar
(310.2790) Thin films : Guided waves
Citation
Kacem El Hadi, Vipul Rastogi, Mangalpady R. Shenoy, Krishna Thyagarajan, Marc De Micheli, and Daniel B. Ostrowsky, "Spectral Measurement of the Film-Substrate Index Difference in Proton-Exchanged LiNbO3 Waveguides," Appl. Opt. 37, 6463-6467 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-27-6463
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