Patent ID: 7590359
Filing Date: 2009-09-15
Classification: H04J,H04Q

Abstract:
1. A communication node system, which generates an optical packet in a network having a plurality of communication nodes connected thereto, the communication node system comprising: an optical frame generating and wavelength multiplexing section for generating data based on a first light source and a primitive code based on a second light source, and wavelength-multiplexing the generated data and primitive code; an encoding section including a plurality of encoders for encoding the primitive code according to a destination communication node, and attaching the encoded code to the data to generate an optical packet, wherein each encoder of the plurality of encoders includes: a BG (Bragg Grating) for encoding an optical signal, the BG having a plurality of grating sections for reflecting a uniquely designated wavelength, wherein the grating sections of the BG are divided into a plurality of code sections for encoding the primative code, and a data section for encoding the data, wherein the code sections and the data section are apart from each other by a distance given by the following equation: wherein c is a velocity of light; n is a refractive index of an optical path; T L an optical amplifier for amplifying the optical packet and outputting the amplified optical packet to the network, and an optical switching section comprising a plurality of optical switches, the plurality of optical switches operate to couple the data and the primitive code output from the optical frame generating and wavelength multiplexing section to one of the plurality of encoders of the encoding section according to a destination based on a selected encoding code type.