Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2006-08-31
2008-11-04
Vanderpuye, Kenneth (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S068000, C398S082000, C398S091000, C398S152000, C398S163000, C398S184000, C398S196000, C398S205000
Reexamination Certificate
active
07447436
ABSTRACT:
A transmitter subsystem generates an optical signal which contains multiple subbands of information. The subbands have different polarizations. For example, in one approach, two or more optical transmitters generate optical signals which have different polarizations. An optical combiner optically combines the optical signals into a composite optical signal for transmission across an optical fiber. In another aspect, each optical transmitter generates an optical signal containing both a lower optical sideband and an upper optical sideband (i.e., a double sideband optical signal). An optical filter selects the upper optical sideband of one optical signal and the lower optical sideband of another optical signal to produce a composite optical signal.
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Bradshaw Matthew C.
Chang Peter H.
Coward James F.
Cutler Gregory M.
Li Ji
Forster Energy LLC
Kim David S
Vanderpuye Kenneth
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