Optical communication system with a fiber-optic amplifier

Details Optical communication system with a fiber-optic amplifier Optical communication system with a fiber-optic amplifier

1991-03-25

1992-12-08

Lee, John D.

Optical waveguides

With optical coupler

Plural

385 27, 372 6, G02B 626

Patent

active

051704471

ABSTRACT:
In an optical communication system with a fiber-optic amplifier (10) which includes a wavelength-selective fiber-optic coupler (12) for coupling pump light into the amplifying length of fiber (11), according to the invention, an additional optical signal from, e.g., a service channel is transmitted from the location of the fiber-optic amplifier (10) in one direction or the other by being coupled into the unused port (4 ) of the wavelength-selective fiber-optic coupler (12). Any coupler (12) suitable for coupling the pump light into the amplifying length of fiber (11) can thus be used to couple an additional optical signal into the fiber-optic link (15) of the system without any special step having to be taken.

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"5 GBIT/S Transmission Over 146 KM Using Erbium-Doped Fibre Amplifier", Berthold Wedding, Thomas Pfeiffer, and Manfred Wittmann, ECOC 1989 15th European Conference on Optical Communications, Sep. 10-14, 1989, pp. 86089.

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