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(19)

RU

(11)

2 146 853

(13)

C1

(51)

IPC

(21) (22)

Application

95105451/09, 1995-04-13

(24)

Start date

1995-04-13

(22)

Actual filing date

1995-04-13

(45)

Published

2000-03-20

(72)

Inventor

Fausto MeliDzhakomo Stefano Roba

(73)

Holder

Pirelli Kavi Eh Sistemi S.P.A.

METHOD FOR CONTROLLING OPTICAL SIGNAL-TO-NOISE RATIO IN RECEIVER, METHOD FOR OPTICAL TELECOMMUNICATIONS (OPTIONS), TELECOMMUNICATION SYSTEM, OPTICAL AMPLIFIER, AND ACTIVE OPTICAL FIBER Russian patent published in 2000 - IPC

Abstract RU 2146853 C1

FIELD: telecommunications. SUBSTANCE: telecommunication system has cascaded optical amplifiers and is primarily designed for multiplex transmission with wavelength separation; combination of dopants in optical fiber enables attaining high signal-to-noise ratio in all channels within desired range of wavelengths even when several signals are simultaneously introduced in fiber. EFFECT: increased signal-to-noise ratio. 45 cl, 16 dwg

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RU 2 146 853 C1

Authors

Fausto Meli

Dzhakomo Stefano Roba

Dates

2000-03-20—Published

1995-04-13—Filed

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