Optical waveguide

Details Optical waveguide Optical waveguide

1986-06-03

1988-09-27

Sikes, William L.

G02B 610

Patent

active

047737204

ABSTRACT:
A waveguide includes a substrate having a major surface and a waveguide layer on the surface of the substrate. At least one confinement layer is on the waveguide layer and includes a transition region. The transition region is an extension of the confinement layer which tapers in width from the width of the confinement layer to a point. The waveguide layer may include a second confinement layer on the waveguide layer which is of a width different from the width of the first confinement layer and has an extension which extends along and contacts both sides of the tapered extension of the one confinement layer. Alternatively, the other confinement layer may extend along both sides of the waveguide layer. The waveguide serves to change the cross-sectional geometry of a beam of light passing along the waveguide layer.

REFERENCES:
patent: 3833284 (1974-09-01), Kaminow et al.
patent: 3980392 (1976-09-01), Auracher
patent: 4372641 (1983-02-01), Johnson et al.
patent: 4606602 (1986-08-01), Unger et al.

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