Thermo-optic coefficients of polymers for optical waveguide applications

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DOIResolve DOI: http://doi.org/10.1016/j.polymer.2006.05.035
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TypeArticle
Journal titlePolymer
Volume47
Issue14
Pages48934896; # of pages: 4
SubjectThermo-optic coefficient; Optical waveguides; Coefficient of thermal expansion
AbstractPolymers with diverse chemical structure were evaluated to establish an empirical relationship between their thermo-optic coefficients (dn/dT) and coefficients of thermal expansion (α) according to the Lorentz–Lorenz equation. The results have showed that, regardless their chemical structure and Tgs, all the evaluated polymers follow a single linear relationship between their dn/dT values and α values with the slope (δn/δT)ρ equal to 0.56 and the interception (ρδn/δρ)T equal to −3.7×10⁻⁶. The relationship can be used to estimate the dn/dT value of a given polymer using its α value, which is widely available and can be easily measured using TMA and other conventional equipment, and the estimated dn/dT value is useful for developing polymers and evaluating device performance in optical waveguide applications.
Publication date
LanguageEnglish
AffiliationNRC Institute for Microstructural Sciences; National Research Council Canada
Peer reviewedYes
NPARC number20154426
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Record identifiercfbbdaf8-b268-4c75-8e62-b900d8e87246
Record created2012-06-22
Record modified2016-05-09
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