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:
Jun. 03, 2013
Filed:
May. 13, 2008
François Gonthier, Quebec, CA;
Lilian Martineau, Grenoble, CA;
François Seguin, Baie-d'urfe, CA;
Alain Villeneuve, Mont-Royal, CA;
Mathieu Faucher, Quebec, CA;
Nawfel Azami, Rabat, MA;
Marc Garneau, St-Laurent, CA;
François Gonthier, Quebec, CA;
Lilian Martineau, Grenoble, CA;
François Seguin, Baie-d'urfe, CA;
Alain Villeneuve, Mont-Royal, CA;
Mathieu Faucher, Quebec, CA;
Nawfel Azami, Rabat, MA;
Marc Garneau, St-Laurent, CA;
ITF Laboratories Inc., Montreal, CA;
Abstract
An optical coupler is provided. It has a bundle of multimode fibers with a few-mode fiber in its centre. Such bundle is fused at one end which is the output end for the signal that is transmitted by the few-mode fiber. To make the coupler, this output end of the bundle is aligned and spliced with a large area core double clad fiber while preserving the modal content of the feed-through. A method for making such optical coupler is also provided. It includes the steps of bundling a central few-mode fiber with a plurality of multimode fibers and then fusing one end of such bundle and aligning it and splicing with a large core double clad fiber, while preserving fundamental mode transmission from one to the other.