Optical fiber tap

Details Optical fiber tap Optical fiber tap

1987-02-27

1989-04-18

Sikes, William L.

350 9616, G02B 626

Patent

active

048221252

ABSTRACT:
An optical fiber tap which is especially useful as a node in a ring topology data processing system. The tap, which does not interrupt the physical continuity of the fiber, has an open position and a closed position. In the open position, a signal passing down the optical fiber passes through the tap without alteration. In the closed position, a signal passing down the optical fiber is extracted through a first bend which is put into the fiber by the tap; the extracted signal, or an electrical counterpart thereof, is processed and a counterpart of the extracted signal, or a new signal obtained by operating on the extracted signal, e.g. in a data processor, is injected into the fiber through a second bend which is put into the fiber by the tap.

REFERENCES:
patent: 3931518 (1976-01-01), Miller
patent: 3936631 (1976-02-01), Muska
patent: 3982123 (1976-09-01), Goell et al.
patent: 4019051 (1977-04-01), Miller
patent: 4135780 (1979-01-01), Dyott
patent: 4253727 (1981-03-01), Jeunhomme et al.
patent: 4270839 (1981-06-01), Cross
patent: 4294513 (1981-10-01), Nelson et al.
patent: 4728169 (1988-03-01), Campbell et al.
Jeunhomme et al., Applied Optics, vol. 14, No. 10, Oct. 1975, "Mode Coupling in a Multimode Optical Fiber. . . ", pp. 2400-2405.

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