Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2006-02-14
2006-02-14
Bello, Agustin (Department: 2633)
Optical communications
Multiplex
Wavelength division or frequency division
C398S046000
Reexamination Certificate
active
06999682
ABSTRACT:
A technique for optically converting wavelengths in a multi-wavelength system is disclosed. In one embodiment, wherein the multi-wavelength system has W wavelength channels, wherein W=2N, the technique is realized by selectively directing a received frequency channel corresponding to a respective wavelength channel based upon a predetermined frequency mapping. Then, the frequency of the selectively directed frequency channel is shifted at least once by an amount defined by ±2iΔf, wherein Δf is the frequency spacing between adjacent frequency channels, and i=0, 1, . . . N−1.
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Dasylva Abel C.
Montuno Delfin Y.
Wang Guo-Qiang
Bello Agustin
Hunton & Williams LLP
Nortel Networks Limited
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