Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2007-01-30
2007-01-30
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Plural
C385S027000, C385S031000, C385S039000
Reexamination Certificate
active
11119731
ABSTRACT:
An optical wavelength division multiplexed system uses wavelength splitters to split channels included in input light into different paths within the system. Odd-numbered channels are split into one path, and even-numbered channels are split into another path, providing increased isolation between channels. Using filters, the system then drops one or more of the isolated, split channels into paths referred to as dropped paths and allows the remaining channels to continue through the filters into output paths. The dropped paths are then combined into one, common dropped path, and the output paths are also combined into one, common output path.
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Font Frank G.
Fujitsu Limited
Mooney Michael P.
Staas & Halsey , LLP
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