Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2005-01-11
2005-01-11
Bovernick, Rodney (Department: 2874)
Optical waveguides
With optical coupler
Plural
C385S031000, C398S068000, C398S072000
Reexamination Certificate
active
06842562
ABSTRACT:
An add/drop node (OADN) comprises a network optical fiber carrying a signal on an optical network. A network drop splitter is coupled to the network optical fiber and to stages of drop splitters, the stages of drop splitters being operable to passively split an optical signal from the network drop splitter into multiple copies of the signal. The OADN further comprises at least one filter operable to receive at least a copy of the signal from at least one drop splitter to create a filtered copy, and further comprises at least one broadband receiver operable to receive the filtered copy from the filter.
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Kinoshita Susumu
Takeguchi Koji
Baker & Botts L.L.P.
Bovernick Rodney
Fujitsu Network Communications, Inc.
Pak Sung
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