Coupling device between a glass fiber and a dielectric waveguide

Details Coupling device between a glass fiber and a dielectric waveguide Coupling device between a glass fiber and a dielectric waveguide

1994-12-13

1997-01-14

Ngo, John

Optical waveguides

With optical coupler

Particular coupling structure

385 83, 385 43, G02B 630

Patent

active

055948243

ABSTRACT:
A coupling device between a glass fiber and a dielectric waveguide integrated on a substrate. A low-loss and low-back-scatter, but cost-effective coupling is achieved by that the fiber end being reduced--principally by drawing under heat exposure until breaking--to a diameter in the order of typical core dimensions of dielectric waveguides. A fiber receiving portion is provided on the substrate dimensions reduced in a way substantially corresponding to the glass fiber and the tip thereof changing over into the waveguide to be coupled. The glass fiber, during assembly, need only be inserted into the receiving portion up to a stop, where it is centered with respect to the waveguide, without tolerances.

REFERENCES:
patent: 4243297 (1981-01-01), Elion
patent: 4474429 (1984-10-01), Yoldas et al.
patent: 5425118 (1995-06-01), Sugihara et al.

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