Adding and dropping wavelength-channels

Details Adding and dropping wavelength-channels Adding and dropping wavelength-channels

2007-04-03

2007-04-03

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S024000

Reexamination Certificate

active

11387362

ABSTRACT:
In a first aspect, an apparatus includes a substrate having a planar surface, an optical demultiplexer located along the surface, and an optical cross-connect matrix located along the surface. The optical demultiplexer has N optical outputs. The optical cross-connect matrix has a first array of N optical input ports and a second array of N optical output ports. Each optical input port of the optical cross-connect matrix is optically connected to a corresponding one of the optical outputs of the optical demultiplexer. The output ports have a sequential ordering in the second array that is a nontrivial permutation of a sequential ordering of the corresponding input ports in the first array.

REFERENCES:
patent: 5002350 (1991-03-01), Dragone
patent: 5136671 (1992-08-01), Dragone
patent: 5596661 (1997-01-01), Henry et al.
patent: 6580534 (2003-06-01), Madsen
patent: 2002/0131678 (2002-09-01), Bentivoglio Ravasui et al.
Datasheet, “Wavelength Division Multiplexing for PacketWave Platform,” Luminous Networks, Inc., www.luminous.com, 4 sheets, Oct. 2002.

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