Patent
1985-08-20
1987-12-22
LaRoche, Eugene R.
350 9615, 350 9623, G02B 626
Patent
active
047143169
ABSTRACT:
An optical fiber unit consists of one or more optical fibers configured to provide an optical function, a preformed internal protective body having a preformed space into which the fiber(s) extend with a relatively close fit, the internal protective body being of a material of hardness and coefficient of thermal expansion substantially matched to that of the fiber(s) and the fiber(s) being bonded thereto, an outer protective body surrounding the internal protective body, at least a portion of the outer protective body having a preformed recess shaped to receive and support the rigid internal protective body, a mass of relatively soft uniting material disposed in a manner to secure the internal protective body to the preformed portion of the outer protective body, an injection-molded portion of the outer protective body, of substance less brittle than the internal protective body, effectively surrounding and protecting the internal protective body and the fiber(s) therewithin from the environment in which the unit is intended for use, and stress relief means associated with the outer protective body enabling the fiber(s) to extend from the internal protective body through the outer protective body in a manner that is effective to prevent breakage of the fibers under conditions of stress on the fiber(s).
REFERENCES:
patent: 4087156 (1978-05-01), Kao et al.
patent: 4254865 (1981-03-01), Pacey et al.
patent: 4264126 (1981-04-01), Sheem
patent: 4474431 (1984-10-01), Bricheno
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4504112 (1985-03-01), Gould et al.
Phalo/O.S.D. Techspex, Optical Directional Coupler (ODC).
Canstar Communications, Singlemode Fiber Optic Couplers.
Allied Amphenol Products, Amphenol Interfuse Single Mode Fiber Optic Coupler.
Gould Electronics, Gould Singlemode Fiber Optic Components.
Gasko William F.
Moore Wayne E.
Quinn Stephen R.
Tufts Wesley M.
Aster Associates
LaRoche Eugene R.
Lee James C.
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