Method of making dielectric optical waveguides

Details Method of making dielectric optical waveguides Method of making dielectric optical waveguides

1977-10-21

1980-01-01

Bashore, S. Leon

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3R, 65 32, 65 33, 156616R, 156617H, 260707, 350 9614, 156617V, C03C 2502, C03B 3200, C01B 2700

Patent

active

041815157

ABSTRACT:
An opto-electronic element consists of a dielectric optical waveguide having a single crystal core of meta-nitroaniline. The element is made by feeding molten meta-nitroaniline into a hollow fibre along which a temperature gradient exists. Nucleation sets in at one end of the fibre and the temperature gradient is altered to promote crystal growth along the fibre. The element can be used as a polarizer, in isolators, harmonic generators or mixers. The action of the device depends on either the non-linear optical properties of the meta-nitroaniline or the optical anisotropy of the meta-nitroaniline. To make a polarizer the meta-nitroaniline core is surrounded by a cladding having a refractive index lying midway between two of the refractive indices of the meta-nitroaniline.

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patent: 3960647 (1976-06-01), Faure et al.
patent: 4060401 (1977-11-01), Maries et al.

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