Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2007-01-04
2009-12-29
Leung, Christina Y (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S072000, C398S082000
Reexamination Certificate
active
07639946
ABSTRACT:
A distribution node for an optical network is provided that includes an integrated filter module comprising a first thin-film and a second thin-film coupled to a common substrate and operable to receive a first downstream signal at the substrate comprising at least traffic in a first wavelength and a second wavelength, transmit the traffic in the first wavelength from the first thin-film to a first plurality of downstream terminals, reflect the traffic in the second wavelength to the second thin-film, and transmit at least the traffic in the second wavelength from the second thin-film to a second plurality of downstream terminals. A traffic distributor is operable to receive a second downstream signal comprising at least traffic in a third wavelength and forward the traffic in the third wavelength to the common substrate for distribution to the first plurality and second plurality of downstream terminals.
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Fujitsu Limited
Leung Christina Y
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