Improvement of photorefractive properties of proton-exchanged LiTaO3 waveguides

Autor(en): Kostritskii, SM
Kip, D
Kratzig, E
Stichwörter: OPTICAL WAVE-GUIDES; Optics; Physics; Physics, Applied
Erscheinungsdatum: 1997
Herausgeber: SPRINGER VERLAG
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 65
Ausgabe: 4-5
Startseite: 517
Seitenende: 522
Zusammenfassung: 
Photorefractive planar waveguides in LiTaO3 are fabricated by both a proton exchange and a successive copper exchange. The influence of different fabrication steps on the refractive index profile and optical absorption is investigated. The holographic efficiency is determined together with the dark-and photo-conductivity. We show that the photorefractive properties of proton-exchanged LiTaO3 waveguides are considerably improved by the additional copper exchange. It is established that the holographic efficiency depends on the copper content, the phase of the proton-exchanged layer and the light intensity.
ISSN: 09462171
DOI: 10.1007/s003400050306

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