Permanent narrow-band reflection holograms for infrared light recorded in LiNbO₃:Ti:Cu channel waveguides
Publication date
2001
Document type
Research article
Author
Organisational unit
Universität Osnabrück
Scopus ID
Publisher
Springer
Series or journal
Applied Physics B Lasers and optics
ISSN
Periodical volume
71
First page
749
Last page
753
Part of the university bibliography
Nein
Language
English
Abstract
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 Δn = 8 × 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.
Version
Not applicable (or unknown)
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