H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 14/02 (2006.01)
Patent
CA 2380121
An apparatus provides an optical wavelength division multiplexed signal having 2M optical channels such that each of M information-bearing signals are differently encoded onto 2 of the 2M optical channels. In particular, the apparatus comprises M inverters, 2M electrical-to-optical converters and a multiplexer. Each electrical-to-optical converter provides an optical signal at a different one of 2M wavelenghts. The apparatus receives the M information-bearing signals and (a) creates M optical signals, each at a different wavelength, by converting each of the M information bearing signals onto the optical domain via M of the 2M electrical-to-optical converters, and (b) creates M inverted optical signals, each at a different wavelength, by first inverting each of the M information bearing signals (via the M inverters) before conversion into the optical domain via the remaining M electrical-to- optical converters. The M optical signals along with the M inverted optical signals are then applied to the multiplexer, which provides an optical wavelength division multiplexed (WDM) signal having 2M channels.
Kirby Eades Gale Baker
Lucent Technologies Inc.
LandOfFree
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