Optical demultiplexing

Details Optical demultiplexing Optical demultiplexing

H - Electricity

04

J

363/1.9

H04J 99/00 (2009.01)

Patent

CA 1295059

ABSTRACT Optical Multiplexing An optical signal is multiplexed for use in a network including a control station (1), a high data rate optical path (2) connecting the control station (1) to a node (3,4) and low data rate optical paths (8, 20) extending from the node (3, 4) to receiving stations (5). The method of multiplexing includes repeatedly sweeping the source (6) of the optical signal through a wide wavelength range such that a distinct wavelength channel is provided for each receiving station (5). The repetition rate is equal to the low data rate. At the node (3, 4) the signal is resolved into constituent wavelength channels occupying distinct time slots and transmitted via respective low data rate optical paths (8, 20) to the receiving stations (5). Figure 1

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