The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2009
Filed:
Dec. 20, 2007
Daniel Scott Homa, Blacksburg, VA (US);
Justin Crusse, York, PA (US);
Daniel Scott Homa, Blacksburg, VA (US);
Justin Crusse, York, PA (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Hydrogen-induced losses in germanium-doped fibers is significantly reduced by increasing the concentration of oxygen in the core region of the glass. The increase in oxygen functions to 'heal' the germanium-deficient defects, thus substantially reducing the sites where hydrogen bonding can intrude. Advantageously, the presence of the excess oxygen does not compromise the ability to create UV-induced gratings in the fiber's core area. Indeed, the stability of the glass has been found to increase even further during UV radiation. Thus, an FBG structure suitable for use in harsh, high temperature environments can be formed.