Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Patent
1991-08-30
1992-12-08
Lee, John D.
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
385124, 385139, G02B 622
Patent
active
051704595
ABSTRACT:
An attachment structure is described that provides means for holding and for applying tensile force to an optical fiber clamped therein. Attachment to an optical fiber is accomplished by stripping the buffer layer(s) from a portion of the fiber and casting a thermosetting polymer encapsulating and compressing member thereon at elevated temperature so that, at lower than the polymer curing temperature, the cast polymer encapsulating member is in compression on the bared fiber and on a short portion of its adjacent buffer layer(s). A tension wire which provides a means for applying external force to the optical fiber has one end inserted axially in the mold for incorporation into the cast encapsulating member. The wire is also placed under compression at temperatures below that of the curing temperature of the polymer. To maintain compression over temperature elevated temperatures, a restrictive cylindrical coil spring is directly engaged around the encapsulating member. Alternatively, a metallic restrictive member may be electro-formed on the encapsulating member. This attachment device is suitable for clamping either an optical fiber that extends out each end of the attachment device, or for clamping an optical fiber where its end terminates within the attachment structure.
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patent: 4848869 (1989-07-01), Urruti
patent: 4893895 (1990-01-01), Berthold et al.
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Herman Elvin E.
Likes Bart E.
Norton Douglas A.
Alkov L. A.
Denson-Low W. K.
Heartney Phan T.
Hughes Aircraft Company
Lee John D.
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