G - Physics – 02 – B
Patent
G - Physics
02
B
88/97.7
G02B 6/44 (2006.01) G02B 6/00 (2006.01) G02B 6/04 (2006.01) G02B 6/32 (2006.01) G02B 6/38 (2006.01) G02B 6/42 (2006.01)
Patent
CA 1246369
OPTICAL FIBER CENTERING DEVICE Abstract of the Disclosure A centering device holds an optical fiber along an axis with three fiber receiving sections and a receiving member. The receiving member has a concentric cylindrical cavity for holding assembled sections. Each section, substantially identical, has a uniform cross-sectional configuration at right angles along a major portion of its length forming a boundary of fixed perimeter. One boundary portion of one section contacts another section. Another boundary portion contacts a different section. 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 cavity. The cavity terminates with an axially oriented truncated conical recess. 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 various shaped configuration. The assembled three fiber receiving sections can have a polygonal shaped external surface. The receiving member can be transparent. The fiber receiving sections can be held within the cavity of the member by a force fit. The radius of the three sections, when assembled but prior to insertion into the cavity, is greater than the radius of the cavity. Thus, an inserted fiber is guided smoothly along a wall of the recess and is stopped when the cross-sectional dimensions of the recess no longer is greater than the diameter of the inserted fiber. Desirably, the end of the fiber is positioned at the focal point of the receiving member.
442835
Carlsen W. John
Melman Paul
Gte Laboratories Incorporated
R. William Wray & Associates
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