Fiber optic coupler and method for making same

Details Fiber optic coupler and method for making same Fiber optic coupler and method for making same

1987-09-17

1991-03-05

Sikes, William L.

350 9616, 350 9629, 350320, 65 41, 65 42, 65 43, G02B 626, C03B 2320

Patent

active

049972472

ABSTRACT:
A fiber optic coupler has at least two optical fibers each having a core with a cladding material disposed thereabout. The fibers, in a limited length coupling region, have the cladding material removed and the core exposed, the thickness of the cladding material increasing is smooth transition from immediately adjacent the exposed core in the limited length coupling region. The fibers in the limited length coupling region are joined by coalescing. In preferred embodiments, in the limited length coupling region, a portion of the core is removed, the core diameter in the coupling region being less than the core diameter in regions adjacent thereto, the outer diameter of the core decreasing in smooth transition from immediately adjacent the cladding material. A method and product of forming these couplers or others with the fibers in crossed relationship are also described.

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