Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshihiro Arashitani0
Hiroki Tanaka0
Takayoshi Ono0
Yasuo Nakajima0
Date of Patent
June 1, 2010
0Patent Application Number
116595000
Date Filed
July 28, 2006
0Patent Primary Examiner
Patent abstract
An optical fiber is provided, which is unlikely to cause interlayer delamination between a glass optical fiber and a primary coating layer even when it is immersed in water. The optical fiber of the present invention includes a glass optical fiber 1 consisting of a core and a cladding, a primary coating layer 2 overlaid on the glass optical fiber, and a secondary coating layer 3 overlaid on the primary coating layer, wherein the relaxation modulus of the secondary coating layer is set at 400 MPa or less.
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