Reconfigurable optical add/drop multiplexer

Details Reconfigurable optical add/drop multiplexer Reconfigurable optical add/drop multiplexer

2002-09-06

2010-10-12

Le, Uyen-Chau N (Department: 2874)

Optical waveguides

With optical coupler

Plural

Reexamination Certificate

active

07813601

ABSTRACT:
Disclosed is an add-drop multiplexer that receives an optical signal having a plurality of channels. The multiplexer spatially separates the channels, and a spatial light modulator within the multiplexer, which in some embodiments is a switched blazed grating, routes the channels along first or second paths according to whether the particular channels are to be sent along as a part of an output communication signal or “dropped” into a dropped-channel optical communications signal. The add-drop multiplexer is also operable to receive optical channels to be added to an optical signal and to use a spatial light modulator to add those optical signals to that optical signal.

REFERENCES:
patent: 6263123 (2001-07-01), Bishop et al.
patent: 6337935 (2002-01-01), Ford et al.
patent: 2002/0044722 (2002-04-01), Tew
patent: 2002/0079432 (2002-06-01), Lee et al.
patent: 2002/0141687 (2002-10-01), Iyer et al.
Yoder et al., DLP™ Technology: Applications in Optical Networking, Spatial Light Modulators: Technology and Applications, 4457 Proceed. SPIE 277 (Uzi Efron ed.), Jul. 31, 2001.

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