Optical waveguide and method of making the same

Details Optical waveguide and method of making the same Optical waveguide and method of making the same

1984-07-10

1987-12-15

Sikes, William L.

350 9629, 350 9610, G02B 610

Patent

active

047128542

ABSTRACT:
A method of making an optical waveguide. First ultraviolet light is radiated upon the surface of a transparent piece of photopolymerization material of a type whose refractive index is changed by the impact of ultraviolet light thereon, so that a refractive index profile in the depthwise direction of the piece of photopolymerization material is formed. Next ultraviolet light is radiated upon the surface of the transparent piece of photopolymerization material in a pattern of a lengthwise extending stripe whose intensity is least in its central portion and becomes greater towards its edge portions, so that a refractive index profile in the widthwise direction of the piece of photopolymerization material is formed. Finally an optical waveguide is structured from the thus irradiated piece of photopolymerization material. Optionally, these profiles may be parabolic profiles. Optionally, also, the structuring of the final optical waveguide may be done by laminating together two similar such pieces of photopolymerization material, thus treated, with their sides which were exposed to ultraviolet radiation in contact with one another.

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