Dilute-melt, proton-exchange slab waveguides in LiNbO 3 : a new fabrication and characterization method.

@article{Veng1997DilutemeltPS,
  title={Dilute-melt, proton-exchange slab waveguides in LiNbO 3 : a new fabrication and characterization method.},
  author={Torben Veng and Torben Pedersen Skettrup},
  journal={Applied optics},
  year={1997},
  volume={36 24},
  pages={5941-8}
}
A method of dilute-melt proton exchange employing a mixture of glycerol and KHSO4 with lithium benzoate added is used to fabricate planar waveguides in c -cut LiNbO3 . With this exchange melt system the waveguide refractive-index profiles can be fabricated with a high degree of reproducibility. In contrast with the traditional dilute-melt method, which uses benzoic acid and lithium benzoate, the need for sealed containers during the exchange process can be avoided when the glycerol, KHSO4 , and… CONTINUE READING