Dielectric optical waveguides

Details Dielectric optical waveguides Dielectric optical waveguides

1974-11-14

1976-12-28

Rolinec, R. V.

350 96R, G02B 514

Patent

active

039998355

ABSTRACT:
Dielectric optical waveguides can be made having a core of vitreous silica doped with nitrogen in the form of silicon nitride, and a cladding of pure vitreous silica. Silicon nitride may be present in the core material in quantities varying between .1% to 10% by weight. The silicon nitride doped silica glass can be formed in a boule by passing a mixture of gaseous compounds containing silicon and nitrogen through a induction coupled plasma discharge. The outside of the doped silica boule may be oxidized to reduce the nitrogen content.

REFERENCES:
patent: 3558213 (1971-01-01), Marcatili
patent: 3806223 (1974-04-01), Keck et al.
Rand et al, "Applied Optics", Nov. 1972, pp. 2482-2488.

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