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:
Nov. 25, 2008
Filed:
Jun. 04, 2007
Robert Scott Windeler, Clinton Township, NJ (US);
Andrew Douglas Yablon, Livingston, NJ (US);
Robert Scott Windeler, Clinton Township, NJ (US);
Andrew Douglas Yablon, Livingston, NJ (US);
Furakawa Electric North America, Inc., Norcross, GA (US);
Abstract
A large mode area optical fiber is configured to support multiple transverse modes of signal radiation within its core region. The fiber is a hybrid design that includes at least two axial segments having different characteristics. In a first axial segment the transverse refractive index profile inside the core is not radially uniform being characterized by a radial dip in refractive index. The first segment supports more than one transverse mode. In a second axial segment the transverse refractive index profile inside the core is more uniform than that of the first segment. The two segments are adiabatically coupled to one another. Illustratively, the second segment is a terminal portion of the fiber which facilitates coupling to other components. In one embodiment, in the first segment M>1.0, and in the second segment M<<M. In a preferred embodiment, M>>1.0 and M˜1.0. In another embodiment, the optical fiber is coupled to a fiber stub.