US Patent 7295580 Numerical aperture optimization using doped cladding layers

Patent 7295580 was granted and assigned to Hrl Laboratories, Llc on November, 2007 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Hrl Laboratories, Llc

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7295580

Patent Inventor Names

David S. Sumida0

Date of Patent

November 13, 2007

Patent Application Number

10846146

Date Filed

May 14, 2004

Patent Primary Examiner

‌

Dung T. Nguyen

Patent abstract

A method and apparatus for optimizing the numerical aperture (NA) of a laser active core. The laser active core comprises at least a first and second cladding pair. The first and second cladding pair have at least one NA value. At least one of the first and second cladding pair is doped with a dopant to change the first NA value to a second NA value.

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