Amplified telecommunication system for wavelength-division multi

Details Amplified telecommunication system for wavelength-division multi Amplified telecommunication system for wavelength-division multi

1997-01-29

1998-05-05

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

372 6, H01S 300

Patent

active

057483647

ABSTRACT:
The present invention relates to an optical amplifier and a telecommunication system including a plurality of the optical amplifiers connected in cascade, particularly adapted for a wavelength division multiplexing transmission, in which a combination of dopants in the active fiber core of the optical amplifiers enables a high signal
oise ratio to be achieved for all channels in a predetermined wavelength band, even in the presence of several simultaneously fed signals.

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