Abstract
KTi0PO4 (KTP) has unique nonlinear and electrooptic properties, very attractive for a variety of applications in the field of nonlinear and integrated optics. At room temperature, it has a ferroelectric structure and exhibits a second-order displacive phase transition at about 952°C. Waveguide structures in this crystal were produced via exchange of K ions with monovalent ones such as Rb, Tl or Cs [1,2]. It was found that the waveguide parameters are very sensitive to the substrate orientation — it is almost impossible to form a waveguide on X- or Y-cut substrates, while diffusion proceeds intensively on Z-cut plates. The XRD measurements has shown very small change of the lattice constants with the composition [3] and a lower perfection of Rb:KTP crystal lattice, probably due to the difference in the ionic radii (K: 1.33, Rb: 1.49).
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© 1999 Springer Science+Business Media Dordrecht
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Savatinova, I., Savova, I., Liarokapis, E., Armenise, M.N., Passaro, V. (1999). Rb:KTP Optical Waveguides. In: Boardman, A.D., Pavlov, L., Tanev, S. (eds) Advanced Photonics with Second-Order Optically Nonlinear Processes. NATO Science Series, vol 61. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0850-1_28
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DOI: https://doi.org/10.1007/978-94-007-0850-1_28
Publisher Name: Springer, Dordrecht
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