Fiber-optic to planar-waveguide optical coupler

Details Fiber-optic to planar-waveguide optical coupler Fiber-optic to planar-waveguide optical coupler

1975-11-12

1977-04-19

Corbin, John K.

350 96WG, G02B 514

Patent

active

040185060

ABSTRACT:
By coupling light from a coupling portion of a thin fiber core to a planar waveguide film through the thickness of the substrate supporting the film, sufficient spreading by diffraction takes place in the light traveling through the thickness of the substrate to provide an aperture at the film large enough to permit light coupled into the film from the substrate to have a substantially plane wavefront.

REFERENCES:
patent: 3674335 (1972-07-01), Ashkin et al.
patent: 3791715 (1974-02-01), Lean et al.
patent: 3871742 (1975-03-01), Kaminow et al.
patent: 3912363 (1975-10-01), Hammer
patent: 3967877 (1976-07-01), Heidrich et al.
Ash et al., "Interconnection of Optical Fibers to Planar Optical Integrated Circuitry," IBM Tech. Disc. Bull., vol. 13, No. 9, Feb. 1971.
Lean et al., "Coupling Light from a Fiber-Optic Waveguide into a Thin-film Waveguide," IBM Tech. Disc. Bull., vol. 15, No. 12, May 1973, pp. 3809-3810.

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