Metro wavelength division multiplexing network

Details Metro wavelength division multiplexing network Metro wavelength division multiplexing network

2007-03-13

2007-03-13

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S337400

Reexamination Certificate

active

10869775

ABSTRACT:
A metro wavelength division multiplexing network is disclosed and includes a plurality of optical repeaters connected to each other through an optical fiber link, wherein each of the optical repeaters includes a Raman gain medium for Raman-amplifying inputted optical signals, an amplification medium having a center wavelength different from a gain center wavelength of the Raman gain medium and amplifying a Raman-amplified optical signals, and a pumping unit for pumping the Raman gain medium.

REFERENCES:
patent: 6215581 (2001-04-01), Yadlowsky
patent: 6760150 (2004-07-01), Goto et al.
patent: 2002/0044324 (2002-04-01), Hoshida et al.
patent: 2002/0060839 (2002-05-01), Oh et al.
patent: 2003/0035202 (2003-02-01), Islam et al.
patent: 2003/0090779 (2003-05-01), Lee

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