Optical waveguide modes in single-crystalline LiNbO3–LiTaO3 solid-solution films
- 15 May 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 24 (10) , 503-506
- https://doi.org/10.1063/1.1655030
Abstract
We report new LiNbO3–LiTaO3 solid‐solution films which form excellent active optical waveguides. Measurement of the waveguide modes indicates that these films have a graded composition. To analyze these waveguides, we present a theory for the calculation of the mode indices and find that the refractive index varies with the depth in the film, according to a Fermi function.Keywords
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