Title: Investigation of ytterbium incorporation in lithium niobate for active waveguide devices
Authors: Haunhorst, Christian 
Brüske, Dominik 
Suntsov, Sergiy 
Kip, Detlef  
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: 2020
Publisher: MDPI
Document Type: Article
Journal / Series / Working Paper (HSU): Applied Sciences : open access journal 
Volume: 10
Issue: 6
Publisher Place: Basel
Abstract: In this work, we report on an investigation of the ytterbium diffusion characteristics in lithium niobate. Ytterbium-doped substrates were prepared by in-diffusion of thin metallic layers coated onto x-and z-cut congruent substrates at different temperatures. The ytterbium profiles were investigated in detail by means of secondary neutral mass spectroscopy, optical microscopy, and optical spectroscopy. Diffusion from an infinite source was used to determine the solubility limit of ytterbium in lithium niobate as a function of temperature. The derived diffusion parameters are of importance for the development of active waveguide devices in ytterbium-doped lithium niobate.
Organization Units (connected with the publication): Experimentalphysik und Materialwissenschaften 
URL: https://api.elsevier.com/content/abstract/scopus_id/85082679899
ISSN: 2076-3417
DOI: 10.3390/app10062189
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