Permanent narrow-band reflection holograms for infrared light recorded in LiNbO3 : Ti : Cu channel waveguides

Autor(en): Hukriede, J
Kip, D
Kratzig, E
Stichwörter: COPPER DIFFUSION; FILTER; LITHIUM-NIOBATE CRYSTALS; Optics; Physics; Physics, Applied; STORAGE
Erscheinungsdatum: 2001
Herausgeber: SPRINGER-VERLAG
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 72
Ausgabe: 6
Startseite: 749
Seitenende: 753
Zusammenfassung: 
Permanent refractive-index gratings are generated by thermal fixing of holograms in photorefractive lithium niobate channel waveguides. The guides are fabricated by successive indiffusion of titanium stripes and thin layers of copper. After high-temperature recording with green light, refractive-index modulations exceeding Deltan = 8 x 10(-5) for light of the telecommunication wavelength 1550 nm appear without the need of any development process of the written holograms. The gratings are stable in the dark and no compensation mechanism via dark conductivity is observed. Thus this method may be well suited for long-time applications in holography and integrated optics.
ISSN: 09462171
DOI: 10.1007/s003400100564

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