초록 ▼

A low-loss unidirectional optical coupler utilizing clad monofilament fibers of different diameters is provided by mounting each fiber on a curved surface, lapping the smaller (launch) fiber substantially tangentially to the curved surface until the core of the launch fiber has been lapped through t

A low-loss unidirectional optical coupler utilizing clad monofilament fibers of different diameters is provided by mounting each fiber on a curved surface, lapping the smaller (launch) fiber substantially tangentially to the curved surface until the core of the launch fiber has been lapped through to produce two elliptical flat surfaces, independently lapping the other (throughput) fiber tangentially to its surface to produce a fiber surface of substantially the same size as one of those produced on the launch fiber, aligning the throughput fiber surface with one of the launch fiber surfaces, and bonding them together.

대표청구항 ▼

A fiber optic coupler comprising: a throughput fiber having a lapped planar surface; and a launch fiber having a pair of planar surfaces formed by lapping entirely through the core of the launch fiber, the ratio of the diameter of the throughput fiber to the diameter of the launch fiber being from 3

A fiber optic coupler comprising: a throughput fiber having a lapped planar surface; and a launch fiber having a pair of planar surfaces formed by lapping entirely through the core of the launch fiber, the ratio of the diameter of the throughput fiber to the diameter of the launch fiber being from 3:2 to 4:1, said fibers being curved and in contact along the planar surface of the throughput fiber and only one of the planar surfaces of the launch fiber, said contacting surfaces being aligned along the curvature of the fibers, wherein the width of the planar surface on the throughput fiber is equal to the core diameter of the launch fiber.