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Making a glass rod with a step of measuring an incremental weight gain

United States Patent

August 10, 2004
View the Complete Patent at the US Patent & Trademark Office
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The present invention provides a simple method for fabricating fiber-optic glass preforms having complex refractive index configurations and/or dopant distributions in a radial direction with a high degree of accuracy and precision. The method teaches bundling together a plurality of glass rods of specific physical, chemical, or optical properties and wherein the rod bundle is fused in a manner that maintains the cross-sectional composition and refractive-index profiles established by the position of the rods.
Kliner; Dahv A. V. (San Ramon, CA), Koplow; Jeffery P. (Washington, DC)
Sandia National Laboratories (Livermore, CA)
10/ 603,521
June 25, 2003
The United States Government has rights in this invention pursuant to Contract No. DE-AC04-94AL85000 between the United States Department of Energy and Sandia Corporation for the operation of Sandia National Laboratories.