Patent ID: 7212705
Filing Date: 2007-05-01
Classification: G02B,H04B,H04J

Abstract:
1. An optical system for decoding, switching, demultiplexing, and routing of optical encoded data signals, the system comprising: a) at least first and second layers, each layer including at least one demultiplexing system having an input and a plurality of outputs, each of said outputs including a decoding device, the device including at least two optical paths having respective lengths adapted to produce propagation times that differ by a desired time delay, wherein each of said demultiplexing systems is capable of performing a function selected from a group of functions including decoding, switching, demultiplexing, and routing, for producing decoded signals at said plurality of outputs of said second layer in response to the encoded data signals received at said input of said first layer, the encoded data signals including at least two pairs of identical pulses, wherein the pulses in each pair are separated by a first time period corresponding to the time delay produced at said first layer, and wherein the two pairs of pulses are separated by a second time period corresponding to the time delay produced at said second layer; and b) a coupling mechanism for optically coupling one or more demultiplexing systems of said first layer with one or more demultiplexing systems of said second layer, by respectively coupling one of said plurality of outputs of the demultiplexing system of said first layer with the input of the demultiplexing system of said second layer.