Add-drop-multiplexer and optical wavelength division...

Details Add-drop-multiplexer and optical wavelength division... Add-drop-multiplexer and optical wavelength division...

2007-10-02

2007-10-02

Singh, Dalzid (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S083000

Reexamination Certificate

active

09913451

ABSTRACT:
An add-drop multiplexer has a group filter that divides an incoming WDM signal into several channel groups of corresponding adjacent WDM channels. A reconfiguration module is connected to each channel group. A first type of module makes it possible to perform a manual configuration of the Add-Drop channels and the coupled WDM channel while a second type of module makes it possible to carry out remote configuration. A fourth type of module enables remote configuration of the drop-continue channels.

REFERENCES:
patent: 6208443 (2001-03-01), Liu et al.
patent: 6545783 (2003-04-01), Wu et al.
patent: 6631018 (2003-10-01), Milton et al.
patent: 6721508 (2004-04-01), Gerstel et al.
Gaudino et al., “Remote Provisioning of a Reconfigurable WDM Multichannel Add/Drop Multiplexer”, Aug. 1999, IEEE Photonics Technology Letters, vol. 11, No. 8.

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