Optical fiber array

In an optical fiber array ( 1 ) which has a V-groove substrate ( 2 ) formed in its surface ( 2 a ) with V-grooves ( 3 ) for arranging optical fibers, a plurality of optical fiber cores ( 61 ) fixedly bonded in each individual V-groove ( 3 ) of the V-groove substrate ( 2 ), and a pressure plate ( 4 )...

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Bibliographic Details
Main Authors Kumagai, Toshiki, Suzuki, Osamu, Kaneko, Junichi, Abe, Yukinari, Muramatsu, Kazuo
Format Patent
LanguageEnglish
Published 07.10.2004
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Summary:In an optical fiber array ( 1 ) which has a V-groove substrate ( 2 ) formed in its surface ( 2 a ) with V-grooves ( 3 ) for arranging optical fibers, a plurality of optical fiber cores ( 61 ) fixedly bonded in each individual V-groove ( 3 ) of the V-groove substrate ( 2 ), and a pressure plate ( 4 ) fixedly bonded to surfaces of the optical fiber cores ( 61 ), an adhesive comprising a resin composition (component A) having an OH group after curing and a filler (component B) is used to fixedly bond the V-groove substrate ( 2 ), the optical fiber cores ( 61 ), and the pressure plate ( 4 ). This adhesive has a glass transition temperature that is somewhat lower than the ambient test temperature and possesses somewhat higher elasticity. Therefore, large internal stress does not occur in the adhesive even under conditions of high temperature and high humidity. Consequently, no peeling occurs as a result of moisture penetration since gaps cannot form between the pressure plate ( 4 ) and the adhesive.