Optical fibers formed of aluminum borophosphate glass compositio

Compositions: coating or plastic – Coating or plastic compositions – Alkali metal silicate containing

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106 47R, 106 50, 350 9634, 428366, 428392, C03C 1300, C03C 2502

Patent

active

041100026

ABSTRACT:
Novel optical fibers are formed from glass compositions enclosed by the iso-composition lines, 2 and 18 mole percent P.sub.2 O.sub.5, 30 and 70 mole percent Al.sub.2 O.sub.3 and 20 and 60 mole percent B.sub.2 O.sub.3 or glass compositions bounded by lines connecting the compositions 28 m% Al.sub.2 O.sub.3 -- 72 m% P.sub.2 O.sub.5 -- 0 m% B.sub.2 O.sub.3 ; 5 m% Al.sub.2 O.sub.3 -- 45 m% P.sub.2 O.sub.5 -- 50 m% B.sub.2 O.sub.3 ; 10 m% Al.sub.2 O.sub.3 -- 30 m% P.sub.2 O.sub.5 -- 60 m% B.sub.2 O.sub.3 and 42 m% Al.sub.2 O.sub.3 -- 58 m% P.sub.2 O.sub.5 -- 0 m% B.sub.2 O.sub.3. The glass compositions forming the optical fibers can contain the usual oxide modifiers.

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