학술논문
Modelling the formation of optical waveguides produced in LiNbO3 by laser induced thermal diffusion of lithium ions.
Document Type
Article
Source
Subject
*OPTICAL waveguides
*LITHIUM niobate
*MATHEMATICAL models
*LASERS
*REFRACTIVE index
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Language
ISSN
0947-8396
Abstract
Analytical and numerical modelling of the fabrication of optical waveguides in lithium niobate (LiNbO3) through direct writing with a continuous wave ultraviolet (UV) laser has been performed. It is proposed that the UV illumination induces heating of the surface and subsequent thermal diffusion of lithium which alters the refractive index in accordance with the lithium concentration dependence of the Sellmeier equations. [ABSTRACT FROM AUTHOR]