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2 015 125

(13)

C1

(51)

IPC

(21) (22)

Application

4831521/33, 1990-10-29

(22)

Actual filing date

1990-10-29

(45)

Published

1994-06-30

(72)

Inventor

Dzhordzho Grasso[It]Al'Do Rigetti[It]Flavio Fontana[It]

(73)

Holder

Sochieta Kavi Pirelli S.P.A.

OPTICAL FIBER Russian patent published in 1994 - IPC

Abstract RU 2015125 C1

FIELD: fiber optics. SUBSTANCE: optical fiber is made from quartz glass doped with trivalent erbium/samarium ions. The erbia content is of 10 to 100 ppm (by weight). The samaria-erbia ratio is determined by the equation given in the description of the invention. EFFECT: improved optical characteristics.

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RU 2 015 125 C1

Authors

Dzhordzho Grasso[It]

Al'Do Rigetti[It]

Flavio Fontana[It]

Dates

1994-06-30—Published

1990-10-29—Filed

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