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. 30, 1997
Filed:
Sep. 20, 1996
Applicant:
Inventors:
Assignee:
Northern Telecom, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 49 ; 385 50 ; 385 30 ; 385-9 ;
Abstract
A method and apparatus are provided for coupling light from a fiber to a waveguide on an OEIC (optoelectronic integrated circuit). The region of the fiber to be connected is made into a D-fiber by removing a portion of its cladding. The flat surface is fused to a silicon dioxide coated portion of the waveguide. The light in the fiber is evanescently coupled into the waveguide on the OEIC which is typically a planar or channel waveguide.