Optical node processor, optical network system and its...

Details Optical node processor, optical network system and its... Optical node processor, optical network system and its...

2004-03-05

2008-09-30

Pascal, Leslie (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S015000, C398S037000, C398S038000, C398S167000

Reexamination Certificate

active

07430373

ABSTRACT:
An optimum optical node processor is provided to a metropolitan network in which the distance of a transmission line between each optical node processor is short. The optical node processor according to the invention is provided with an optical add/drop multiplexer (OADM), variable optical control means connected to the OADM for collectively attenuating the intensity level of WDM optical signals, a controller for controlling the variable optical control means and monitoring control means for controlling the controller according to information from an external device, and enables the automatic power reduction (APR) control and the output control of an optical network system.

REFERENCES:
patent: 5005937 (1991-04-01), Aida et al.
patent: 5812710 (1998-09-01), Sugaya
patent: 6392769 (2002-05-01), Ford et al.
patent: 7006771 (2006-02-01), Miyata et al.
patent: 2003/0053175 (2003-03-01), Szczepanek et al.
patent: 2000-354006 (2000-12-01), None

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