학술논문
Investigation of refractive index modifications in CW CO2 laser written planar optical waveguides
Document Type
Article
Author
Source
Subject
*RESEARCH
*WAVEGUIDES
*ELECTRIC waves
*OPTICAL reflection
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Language
ISSN
0030-4018
Abstract
Abstract: This paper presents the measurement of the refractive index profile of buried channel waveguides fabricated by a CW CO2 direct writing technique. A reflectance method is used to assess the refractive index distribution n(x,y) in these structures as it is a key parameter determining the propagation properties of guided wave devices. Beam propagation method (BMP) is used with experimentally determined cross-sectional data and refractive index profile to model the waveguides. The spatial resolution is 1.3μm and, 5.10−4 for the refractive index. [Copyright &y& Elsevier]