Optical amplifier for bi-directional WDM optical communications

Details Optical amplifier for bi-directional WDM optical communications Optical amplifier for bi-directional WDM optical communications

1997-12-23

2000-06-27

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359114, H01S 300

Patent

active

060813687

ABSTRACT:
In accordance with the invention, an amplifier for a bi-directional WDM optical system comprises an arrangement of multiplexers with unidirectional arms disposed between a pair of bi-directional amplification stages. The multiplexer arrangement combines and separates wavelengths in both directions and reduces the effects of Rayleigh backscattering and amplified spontaneous emission.

REFERENCES:
patent: 5633741 (1997-05-01), Giles
patent: 5742416 (1998-04-01), Mizrahi
patent: 5815308 (1998-09-01), Kim et al.
patent: 5847862 (1998-12-01), Chraplyvy et al.

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