SECURE DATA TRANSMISSION VIA SPATIALLY MULTIPLEXED OPTICAL SIGNALS

摘要

Various embodiments provide secure optical transmission of data. Noise may be added to optical signals transmitted by spatial paths of a multimode optical fiber. The noise may be added electrically prior to modulation, or optically after modulation. In some embodiments a transmitter and a receiver cooperate to maintain a noise level sufficient to place a tapped signal in a noise regime that provides a predetermined level of data security.

主权项

1. A system, comprising:
a spatially multiplexing optical fiber; a mode-selective multiplexer configured to condition each of a plurality of optical signals for transmission via a corresponding spatial mode of the optical fiber; and a noise source configured to add a noise signal to one or more of the optical signals.