Optical fiber launch coupler

Details Optical fiber launch coupler Optical fiber launch coupler

1980-02-20

1981-12-29

Lee, John D.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156153, 350 9615, G02B 5172

Patent

active

043079334

ABSTRACT:
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.

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Tsujimoto et al., "Fabrication of Low-Loss 3 db Couplers With Multimode Optical Fibers", Electronics L., vol. 14, No. 5, Mar. 1978, pp. 157-158.

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