Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 4, 2014
Patent Application Number
13112457
Date Filed
May 20, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
The polarization-maintaining fiber of the invention includes a core (1) made of germanium doped silica glass; a stress-applying part (3) made of boron doped silica glass; a cladding (2) made of pure silica glass; and a polyimide coating layer (4) with a thickness of 10 μm or less that surrounds the outer periphery of the cladding (2).
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