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This paper demonstrates that standard multiplexers as generalized Mach-Zehnder interferometers or waveguide grating routers can be designed to generate/process a set of orthogonal optical codes (OCs) with very high-correlation performances. The same device can be used at the ingress node of a generalized multiprotocol label switching network to generate the photonic labels and at each routing node to perform all the correlations simultaneously. To enhance the code cardinality, without increasing the code length, this paper shows that it is possible to use the proposed encoder/decoder architectures to generate/process multidimensional OCs.
Date of Publication: July 2004