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. 06, 1993
Filed:
Aug. 12, 1991
George T Harvey, Princeton, NJ (US);
Peter H Read, Morrisville, PA (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
Substrates for supporting optical fibers in an optical coupler are made by, first, making grooves in a glass preform which are about ten times the desired size, and then using glass drawing techniques to draw from the preform a substrate of the proper size. Optical fibers are arranged in ribbon form and placed in a fixture which allows the ends to be cut and polished at the angle required for proper coupler operation. Fibers are stripped from the end of the ribbon that has been cut and polished and placed in the grooves for proper alignment with abutting fibers. The ends of the fibers that remain fixed to the ribbon prevent unwanted rotation of the fibers.