Graded start rods for the production of optical waveguides

Details Graded start rods for the production of optical waveguides Graded start rods for the production of optical waveguides

1979-07-13

1981-11-03

Lee, John D.

Glass manufacturing

Processes

Forming product or preform from molten glass

350 9631, C03C 37075, G02B 5172

Patent

active

042983665

ABSTRACT:
A process for preparing a glass rod having a graded refractive index for use as the start rod in the production of optical waveguides is disclosed. The process comprises depositing and sintering borosilicate particles on a glass rod to form a rod having a larger diameter than the original fused silica rod and drawing this rod to obtain a start rod having the same diameter as the original glass rod but exhibiting a partially radially graded refractive index. Optical waveguides prepared from such graded start rods have a more uniformly graded radial index of refraction profile.

REFERENCES:
patent: 3823995 (1974-07-01), Carpenter
patent: 3826560 (1974-07-01), Schultz
patent: 3843229 (1974-10-01), Rosenberger
patent: 3932160 (1976-01-01), Camlibel et al.
patent: 3989350 (1976-11-01), Cohen et al.
patent: 4141710 (1979-02-01), Aulich et al.
patent: 4161505 (1979-07-01), Shiraishi et al.
patent: 4165152 (1979-08-01), Shiraishi et al.

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