Optical line terminal arrangement, apparatus and methods

Details Optical line terminal arrangement, apparatus and methods Optical line terminal arrangement, apparatus and methods

2008-05-06

2008-05-06

Sedighian, M. R. (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S082000, C398S083000, C398S045000, C398S048000

Reexamination Certificate

active

10737765

ABSTRACT:
A wavelength division multiplexed optical communication system including a first optical line interface optically coupled to a first transponder and an optical demultiplexer through which the first optical line interface is not optically coupled to the first transponder. The system also includes a second optical line interface and at least one switch. The switch is operable to optically couple the second optical line interface to (a) the first optical line interface through at least the optical demultiplexer, and alternatively (b) the second transponder. A method for an optical add/drop multiplexing system also is provided.

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