Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2005-09-19
2010-11-02
Curs, Nathan M (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S078000, C398S151000, C380S256000, C380S278000, C713S171000
Reexamination Certificate
active
07826749
ABSTRACT:
A system and a method for quantum key distribution over a multi-user wavelength division multiplexing (WDM) network are disclosed. The system comprises a tunable or multi-wavelength transmitter; a plurality of receivers, each assigned a receiving-wavelength; and a multi-user WDM network linking the transmitter to the receivers. The transmitter can select a receiver among the receivers to be communicated therewith and transmit quantum signals to the selected receiver over the WDM network. The quantum signals are at a wavelength equal to a receiving-wavelength of the receiver. Therefore the WDM network allows quantum signals to be communicated between the transmitter and the receivers by wavelength routing.
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Chan Kam Tai
Luo Yuhui
Curs Nathan M
Schwegman Lundberg & Woessner, P.A.
The Chinese University of Hong Kong
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