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:
Oct. 25, 1988
Filed:
Jul. 24, 1986
Applicant:
Inventors:
Kenneth O Hill, Kanata, Ontario, CA;
Derwyn C Johnson, Nepean, Ontario, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9615 ; 350 9610 ; 350320 ;
Abstract
A fiber optic directional coupler comprising a pair of strands of single mode optical fiber having biconical tapers whereby the electromagnetic field within the fibers extend virtually to the cladding outside surface, the strands in the region of the tapers being bent in opposite directions and positioned with their cladding in contact over a length of the waist of the tapers, the cladding in contact being narrowed on one side, flat, and polished, whereby the field is coupled from one strand to the other.
Hill, Kenneth. (1988). Directional coupler utilizing biconically tapered optical fibers and a (U.S. Patent No. 4779945). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4779945
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile