Method of laser enhanced thermal diffusion

Details Method of laser enhanced thermal diffusion Method of laser enhanced thermal diffusion

1980-11-24

1983-05-10

Hoffman, James R.

Coating processes

Electrical product produced

Welding electrode

427162, 427163, 427164, B05D 306, C02B 5172

Patent

active

043829783

ABSTRACT:
There is disclosed a method by which a three-dimensional horn structure at the end of a channel waveguide in a dielectric chip is produced to facilitate coupling of a fiber optic waveguide by butt coupling techniques. The three-dimensional horn structure is fabricated by localized surface diffusion resulting from superposing a CO.sub.2 laser heating beam on the desired enlarged area while diffusion of the waveguide is taking place or after it has taken place in a controlled ambient furnace atmosphere.

REFERENCES:
patent: 4284663 (1981-08-01), Carruthers et al.

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