System and method of wavelength add/drop multiplexing having...

Details System and method of wavelength add/drop multiplexing having... System and method of wavelength add/drop multiplexing having...

2007-06-12

2007-06-12

Sedighian, M. R. (Department: 2613)

Optical communications

Multiplex

Optical switching

C398S083000, C385S017000, C385S018000

Reexamination Certificate

active

11188412

ABSTRACT:
An optical carrier drop/add transmission system and method for adding a signal to multiplexed input optical signals conveyed by an optical multiplex input line. The multiplexed input optical signals are demultiplexed to provide isolated input optical signals to an optical switch matrix comprising switches in an array of lines and column, the isolated input optical signals being inputted in a direction parallel to a line of switches in the optical switch matrix. The added optical signal is input in a direction parallel to a column in the optical switch matrix. An output line is selected and the switch that is on the column on which the added optical signal is inputted and on the selected output line is switched.

REFERENCES:
patent: 5581643 (1996-12-01), Wu
patent: 6519060 (2003-02-01), Liu
patent: 6928244 (2005-08-01), Goldstein et al.

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