Abstract:
Apparatus and system for transmitting and receiving Optical code division multiple access data over an optical Network. The apparatus comprises a spectral phase decoder for Decoding the encoded optical signal to produce a decoded Signal, a time gate for temporally extracting a user signal From the decoded signal, and a demodulator that is operable to Extract user data from the user signal. The system preferably Comprises a source for generating a sequence of optical Pulses, each optical pulse comprising a plurality of spectral Lines uniformly spaced in frequency so as to define a Frequency bin, a data modulator associated with a subscriber And operable to modulate the sequence of pulses using Subscriber data to produce a modulated data signals and a Hadamard encoder associated with the data modulator and Operable to spectrally encode the modulated data signal to Produce an encoded data signal.
Abstract:
In an OCDM-based photonic encryption system by applying random noise on unused channels and varying the inter-code phases on realistic framing repetition, an OCDM-based encryption system with provable security guarantees results.
Abstract:
Apparatus and system for transmitting and receiving Optical code division multiple access data over an optical Network. The apparatus comprises a spectral phase decoder for Decoding the encoded optical signal to produce a decoded Signal, a time gate for temporally extracting a user signal From the decoded signal, and a demodulator that is operable to Extract user data from the user signal. The system preferably Comprises a source for generating a sequence of optical Pulses, each optical pulse comprising a plurality of spectral Lines uniformly spaced in frequency so as to define a Frequency bin , a data modulator associated with a subscriber And operable to modulate the sequence of pulses using Subscriber data to produce a modulated data signals and a Hadamard encoder associated with the data modulator and Operable to spectrally encode the modulated data signal to Produce an encoded data signa l.
Abstract:
A system and method is provided for identifying fraudulent data in an optical data transmission. The system and method includes scrambling an encoded data signal using dynamically changing scramble code; transmitting the scrambled encoded data signal over a network; descrambling the scrambled encoded data signal using a descramble code corresponding to a compliment of the dynamically changing scramble code; analyzing the descrambled encoded data signal to search for a region of low error between descrambled data and noise; notifying of a possible spoofing attempt when a region of low error is not found; and decoding the descrambled encoded data signal using a compliment of phase codes originally used for encoding the encoded data signal in order to generate a decoded signal to retrieve a desired data signal when a region of low error is found.
Abstract:
A system and method for transporting encrypted data having a transmitter and a receiver is provided. The transmitter generates a sequence of optical pulses, which are copied and output as identical channels. The identical channels are modulated by a plurality of modulators using data to generate a modulated data signal. Respective spectral phase encoders coupled to each of the plurality of data modulators encode respective modulated data signals using a plurality of mutually orthogonal phase codes that are individually associated with the respective spectral phase encoder. These encoded data signals are combined and code-scrambling by a spectral phase scrambler t using a scramble code as an encryption key to generate an encrypted signal. A receiver reverses the encryption to extract the data.
Abstract:
A system and method for transporting encrypted data having a transmitter and a receiver is provided. The transmitter generates a sequence of optical pulses, which are copied and output as identical channels. The identical channels are modulated by a plurality of modulators using data to generate a modulated data signal. Respective spectral phase encoders coupled to each of the plurality of data modulators encode respective modulated data signals using a plurality of mutually orthogonal phase codes that are individually associated with the respective spectral phase encoder. These encoded data signals are combined and code-scrambling by a spectral phase scrambler t using a scramble code as an encryption key to generate an encrypted signal. A receiver reverses the encryption to extract the data.
Abstract:
In an OCDM-based photonic encryption system by applying random noise on unused channels and varying the inter-code phases on realistic framing repetition, an OCDM-based encryption system with provable security guarantees results.
Abstract:
Apparatus and system for transmitting and receiving Optical code division multiple access data over an optical Network. The apparatus comprises a spectral phase decoder for Decoding the encoded optical signal to produce a decoded Signal, a time gate for temporally extracting a user signal From the decoded signal, and a demodulator that is operable to Extract user data from the user signal. The system preferably Comprises a source for generating a sequence of optical Pulses, each optical pulse comprising a plurality of spectral Lines uniformly spaced in frequency so as to define a Frequency bin, a data modulator associated with a subscriber And operable to modulate the sequence of pulses using Subscriber data to produce a modulated data signals and a Hadamard encoder associated with the data modulator and Operable to spectrally encode the modulated data signal to Produce an encoded data signal.