Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2007-12-06
2011-12-06
Li, Shi K (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S066000, C398S043000, C398S045000, C398S072000, C370S420000, C370S467000, C370S430000
Reexamination Certificate
active
08073331
ABSTRACT:
According to one embodiment of the present invention, a wavelength-shifted dynamic intelligent bidirectional access optical system utilizes key optical elements such as: a quantum dot enabled semiconductor optical amplifier, a phase modulator and an intensity modulator to provide upstream optical signals. These key optical elements reduce the Rayleigh backscattering effect on the transmission of optical signals. to enable a longer-reach access network topology between a subscriber unit and a super node (e.g., many local nodes collapsed into one super node). Such a longer-reach access network topology eliminates operational and capital costs related routers and switches. Furthermore, a wavelength to a subscriber unit may be protected and dynamically varied for on-Demand bandwidth, information and services and also a subscriber's unit may be configured with any array of connectivity options.
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Jacob Oommen
Kindred | Posey
Li Shi K
Posey, Esq. Ivan
LandOfFree
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