Patent ID: 6577732
Filing Date: 2003-06-10
Classification: H04J,H04K

Abstract:
A method for improving the security of information being transmitted in a wavelength division multiplexed signal having a plurality of optical channels of different wavelengths, the method comprising:receiving parallel-formatted information supplied by at least one source; multiplexing the parallel-formatted information according to a first predetermined scrambling pattern; and transporting the multiplexed and scrambled information in a parallel bus transmission group using individual optical channels of different wavelengths within the wavelength division multiplexed signal, the parallel bus transmission group including a predetermined number of the plurality of optical channels, each having a different wavelength, for carrying the multiplexed and scrambled information, wherein the multiplexed and scrambled information is formatted as bytes, each byte having N bits, the transporting step further characterized by byte-wide parallel transmission wherein each optical channel of a different wavelength in the parallel bus transmission group carries a corresponding one of the N bits of a byte being transmitted.