Spread spectrum optical communication system with heterodyne...

Details Spread spectrum optical communication system with heterodyne... Spread spectrum optical communication system with heterodyne...

H - Electricity

04

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325/1, 363/1.5

H04B 14/02 (2006.01) H04B 1/66 (2006.01) H04B 1/69 (2006.01) H04B 10/142 (2006.01) H04J 13/00 (2006.01) H04J 14/00 (2006.01) H04J 14/08 (2006.01)

Patent

CA 1294071

ABSTRACT A broad spectrum optical carrier from a source is divided over at least two paths, and the carrier in at least one path is modulated in accordance with information. The paths are recombined with delay multiplexing. At a distribution point, the recombined paths are divided and the modulated carrier in at least one of the paths is combined in heterodyne detection with a local oscillator signal having a frequency shifted with respect to the carrier. The local oscillator signal is delayed prior to combination by a delay corresponding to a delay of the delay multiplexing.

540848

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