Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Joona Koponen0
Petteri Väinänen0
Laeticia Petit0
Date of Patent
November 1, 2016
0Patent Application Number
134947680
Date Filed
June 12, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.
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