Optical add/drop multiplexer, control method therefor and...

Details Optical add/drop multiplexer, control method therefor and... Optical add/drop multiplexer, control method therefor and...

2006-03-20

2009-12-08

Tran, Dzung D (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S091000, C398S094000

Reexamination Certificate

active

07630644

ABSTRACT:
The present invention provides an optical add/drop multiplexer including an optical power control unit for performing a control of an optical power by the unit of each signal light included in the wavelength multiplexed light, wherein the optical power control unit includes control logic for implementing a first control mode in which a transition to an automatic control of the optical power and release from the aforementioned control are carried out by comparing the optical power with a threshold value, and a second control mode in which a transition to an automatic control of the optical power is carried out based on control information of a notification by another of the optical add/drop multiplexers and release from the automatic control is carried out based on the comparison between the optical power and the threshold value.

REFERENCES:
patent: 7280761 (2007-10-01), Aono
patent: 2002/0051271 (2002-05-01), Yoshikoshi
patent: 2006/0072918 (2006-04-01), Gerstel et al.
patent: 2006/0104641 (2006-05-01), Casanova et al.
patent: 2002-204209 (2002-07-01), None
patent: 2003-69496 (2003-03-01), None

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