Plastic optical fibers and process for the production thereof

Details Plastic optical fibers and process for the production thereof Plastic optical fibers and process for the production thereof

1991-01-18

1992-05-05

Healy, Brian

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide cladding

385143, 428421, 428422, 5253262, 264 15, 264 16, 264 27, G02B 600, B32B 2700, C08F 800, B29D 1100

Patent

active

051115263

ABSTRACT:
A plastic optical fiber comprising a core polymer having a refractive index of n.sub.1, which comprises a polymer of .alpha., .beta.-unsaturated carboxylic acid fluoroalkylester represented by the general formula [I] as the main monomer, and a clad copolymer having a refractive index of n.sub.2, which comprises perfluoro(2,2-dimethyl-1,3-dioxole) as the main monomer, and which satisfies the relationship of (n.sub.1 -n.sub.2 .gtoreq.0.01): ##STR1## wherein X represents CH.sub.3, H, D, F, Cl, or CF.sub.3, Y represents H or D, and Rf represents a fluoroalkyl group having a linear or branched chain. The optical fiber is prepared by a melt-extrusion method. The optical fiber has excellent light transmitting properties, and it is suitable as an optical fiber for long distance light communication.

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patent: 4966435 (1990-10-01), Matsumoto et al.
patent: 4977025 (1990-12-01), Squire
patent: 4977026 (1990-12-01), Squire
patent: 4979799 (1990-12-01), Herbrechtsmeier et al.
patent: 4984870 (1991-01-01), Herbrechtsmeier et al.
patent: 4985308 (1991-01-01), Squire
patent: 4989947 (1991-02-01), Sasaki et al.
patent: 5006382 (1991-04-01), Squire

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