1981-01-07
1983-07-05
Lieberman, Eli
G02B 514
Patent
active
043914870
ABSTRACT:
A centering device, for holding an optical fiber along an axis, includes three sections of fiber receiving means, and a receiving member. The receiving member has a cylindrical recess, concentric with the axis, for holding the sections in assembly. The sections are substantially identical, each having a uniform cross-sectional configuration at right angles along a major portion of its length forming a boundary of fixed perimeter. One portion of the boundary of one section contacts another section. Another portion of the boundary contacts a different section. A third portion contiguous to the first two portions is adapted to engage an optical fiber along its length. A fourth portion contiguous to the first two, but not to the third, engages the cylindrical wall defined by the concentric recess of the receiving member. The recess terminates with a planar wall perpendicular to the axis. It can have an axially oriented depression. The fourth portion of the boundary engages differing amounts of a cylindrical wall depending upon the shape of the fourth portion. The sections include elastomeric material of sufficient resilience for a passageway defined by the third portions of assembled sections to expandably receive an optical fiber dimensioned larger than the passageway. The passageway can have a substantially triangular cross-section for receiving a fiber having a substantially circular cross-section. It can flare outwardly from a position interior the fiber receiving means to respective ends thereof. Passageway flaring can have a triangular, a hexagonal, or a circular configuration. The device can have a fiber receiving means with a polygonal shaped external surface. The receiving member can be transparent. The fiber receiving means can be held within the recess of the member by a force fit. The radius of the three sections, when assembled but prior to insertion into the recess, is greater than the radius of the recess.
REFERENCES:
patent: 4181401 (1980-01-01), Jensen
patent: 4201443 (1980-05-01), Hodge
patent: 4257674 (1981-03-01), Griffin et al.
Carlsen W. John
Melman Paul
Fisher Fred
GTE Laboratories Incorporated
Lieberman Eli
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