Bi-directional wavelength division multiplexing self-healing...

Details Bi-directional wavelength division multiplexing self-healing... Bi-directional wavelength division multiplexing self-healing...

2007-02-06

2007-02-06

Payne, David C. (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S079000, C398S058000, C398S072000

Reexamination Certificate

active

10918279

ABSTRACT:
Disclosed is a bi-directional wavelength division multiplexing self-healing passive optical network including: a central office for multiplexing and transmitting downstream optical signals to a first and a second main fiber; a remote node connected to the central office through the first and the second main fiber, for transmitting multiple pairs of the downstream optical signals, which are obtained by demultiplexing one inputted pair of the multiplexed downstream optical signals according to wavelengths, to corresponding pairs of distribution fibers; and a plurality of optical network units connected to the remote node through the multiple pairs of distribution fibers, each of the optical network units being selectively connected to one corresponding pair of the distribution fibers, for receiving a corresponding downstream optical signal from the selected distribution fiber.

REFERENCES:
patent: 6567579 (2003-05-01), Foltzer
patent: 2001/0017722 (2001-08-01), Takachio et al.
patent: 2003/0076560 (2003-04-01), Pratt et al.
patent: 2004/0175177 (2004-09-01), Lee et al.
patent: 2004/0184806 (2004-09-01), Lee et al.

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