Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-03-20
2007-03-20
Tran, Dzung (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S046000, C398S049000, C398S050000
Reexamination Certificate
active
10147181
ABSTRACT:
An optical cross connect architecture is provided in which the density of spectral bands on optical signals through the cross connect may vary. The general functionality of such variable-density optical cross connect is to receive input optical signals that each have multiple spectral bands and to transmit output optical signals each having one or more of the spectral bands. A concentrator redistributes the spectral bands from the input optical signals among a smaller number of first intermediate optical signals. A core cross connect redistributes the spectral bands on the first intermediate optical signals among second intermediate optical signals. An expander redistributes the spectral bands on the second intermediate optical signals among a greater number of output optical signals.
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Bortolini Edward J.
Clark Phillip
Urie Richard W.
Weverka Robert T.
Altera Corporation
Townsend and Townsend / and Crew LLP
Tran Dzung
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