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:
Dec. 04, 2001
Filed:
Jul. 20, 1999
Ephraim Suhir, Randolph, NJ (US);
Agere Systems Optoelectronics Guardian Corp., Orlando, FL (US);
Abstract
This invention is predicated on applicant's discovery that the conventional polymer coatings are often too thin to prevent buckling and subsequent bending of optical interconnection fiber, and that this buckling and the consequent induced bending can be eliminated by increasing the thickness of the fiber polymer coating. Applicant has further discovered that a thicker coating that might be insufficient to prevent buckling, reduces stress should buckling occur, thereby improving the reliability and quality of the waveguide. The optimal (minimum) polymer thickness for buckling prevention can be calculated in terms of the properties of the fiber and tube materials and the thermal history of the device. Increased thicknesses less than this optimal thickness can nonetheless reduce stress should buckling occur.