Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2006-05-16
2006-05-16
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling function
C385S027000, C385S043000, C385S045000, C385S050000
Reexamination Certificate
active
07046875
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.
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Applications Note No. M105 (Oxford Electronics Ltd.) Jun. 1, 1999.
Azami Nawfel
Faucher Mathieu
Garneau Marc
Gonthier François
Martineau Lilian
Font Frank G.
ITF Optical Technologies Inc.
ITF Technologies Optiques Inc.
Lepisto Ryan
Primak George J.
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