Patent ID: 8615087

Claim:
A spectral-phase encoded optical code division multiplexing based photonic encryption system, the system includes a computer processor, comprising: n independent channels, each adapted for carrying a respective orthogonal code signal where m of the n channels are adapted for carrying a respective frameless noise stream and any among the remaining n-m channels are adapted for carrying real data; n phase modulators each coupled to a respective one of the n independent channels, each phase modulator applying a dynamically changing inter-code optical phase shift between the n independent channels at a rate d, where 0<d≦1 in unit of data rate; an n:1 combiner coupled to the outputs of the n phase modulators to provide a single output signal; a scrambler for receiving and scrambling the output signal in accordance with a scrambling key for transmitting a scrambled signal, wherein said scrambler comprises a coder representing a diagonal matrix that changes the relative phases of n frequency bins in p phase step settings and a monomial matrix, wherein the monomial matrix permutes the optical frequency assigned to the code elements implemented in a plurality of encoders and decoders; a descrambler for receiving the scrambled signal and descrambling the scrambled signal in accordance with a descrambling key; and a 1:n splitter for separating the descrambled signal into n-m channels which when decoded correspond to the n-m data carrying channels.