Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shoji Tanigawa0
Kuniharu Himeno0
Shoichiro Matsuo0
Date of Patent
October 20, 2009
Patent Application Number
11738275
Date Filed
April 20, 2007
Patent Primary Examiner
Patent abstract
An optical fiber comprises a center core and a cladding located at an outer periphery of the core, wherein the core comprises at least one codoped layer made from silica glass doped with germanium and fluorine, and at least one lower-concentration codoped layer made from silica glass doped with germanium, or silica glass that is doped with germanium and fluorine wherein an amount of fluorine in the lower-concentration codoped layer is smaller than an amount of fluorine in the codoped layer.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
