Patents by Inventor Shahab Etemad
Shahab Etemad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9100131Abstract: A photon source capable of emitting, for example, a single photon or a single pair of photons on demand. The photon source may include an excitation region where a single instance of a quantum system is excited using excitation energy. A Stimulated Raman Adiabatic Passage (STIRAP) technique can be used for exciting the quantum system to a desired energy level. The photon source may include a photon emission region physically displaced from the excitation region. A transport device can be used for controllably moving an excited quantum system from the excitation region to the photon emission region. The photon emission region may include a resonant cavity tuned to the de-excitation frequency of the quantum system for inducing de-excitation of the quantum system and emission of a photon. The photon emission resonant cavity may be switchably coupled to an output port by a tunable resonant cavity coupling device.Type: GrantFiled: May 10, 2010Date of Patent: August 4, 2015Inventors: John Madey, Eric Szarmes, Pui Kwong Lam, Shahab Etemad, Nicholas Peters, Zhensheng Jia
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Patent number: 8831426Abstract: A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected into a common phase scrambler. Coherent summation of these optically encoded tributaries pass through a shared phase or phase and frequency scrambler before exiting the secure location. The setting of the scrambler acts as the key. The authorized recipient with the correct key retrieves the ones and zeros of the several decoded signals.Type: GrantFiled: September 12, 2012Date of Patent: September 9, 2014Assignee: Telcordia Technologies, Inc.Inventors: Shahab Etemad, Janet Jackel, Sarry Habiby
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Patent number: 8737618Abstract: An optical communications network incorporating photonic layer security, with secure key exchange without loss of data, and a method of operating the network are disclosed. The network comprises a transmit side and a receive side. The transmit side includes first and second scramblers and a transmit side switch; and the receive side includes first and second descramblers and a receive side switch. The scramblers use encryption keys to encrypt optical signals, and the descramblers use the encryption keys to decrypt the encrypted optical signals. The encryption keys can be updated randomly and at will by installing new encryption keys on the scramblers and descramblers, and the transmit side and receive side switches are synchronized so that all of the optical signals that are encrypted using a new or updated encryption key are decrypted using the same new or updated encryption key.Type: GrantFiled: June 28, 2010Date of Patent: May 27, 2014Assignee: Telcordia Technologies, Inc.Inventors: Shahab Etemad, Paul Toliver
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Patent number: 8615087Abstract: 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.Type: GrantFiled: February 23, 2009Date of Patent: December 24, 2013Assignee: Telcordia Technologies, Inc.Inventors: Giovanni DiCrescenzo, Shahab Etemad, Ronald Menendez
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Patent number: 8488967Abstract: 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 using a scramble code as an encryption key to generate an encrypted signal. A receiver reverses the encryption to extract the data.Type: GrantFiled: June 26, 2009Date of Patent: July 16, 2013Assignee: Telcordia Technologies, Inc.Inventors: Shahab Etemad, Thomas Banwell, Janet Jackel, Ronald Menendez, Paul Toliver
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Publication number: 20130016837Abstract: A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected into a common phase scrambler. Coherent summation of these optically encoded tributaries pass through a shared phase or phase and frequency scrambler before exiting the secure location. The setting of the scrambler acts as the key. The authorized recipient with the correct key retrieves the ones and zeros of the several decoded signals.Type: ApplicationFiled: September 12, 2012Publication date: January 17, 2013Applicant: Telcordia Technologies, Inc.Inventors: Shahab Etemad, Janet Jackel, Sarry Habiby
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Patent number: 8290371Abstract: A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected into a common phase scrambler. Coherent summation of these optically encoded tributaries pass through a shared phase or phase and frequency scrambler before exiting the secure location. The setting of the scrambler acts as the key. The authorized recipient with the correct key retrieves the ones and zeros of the several decoded signals.Type: GrantFiled: September 21, 2009Date of Patent: October 16, 2012Assignee: Telcordia Technologies, Inc.Inventors: Shahab Etemad, Janet Jackel, Sarry Habiby
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Publication number: 20110255871Abstract: The present invention relates to advances in the field of reconfigurable optical networks. In particular, the present invention provides improvements in the technology of light sources for use in optical networks. The optical network according to the present invention includes a single light source that can be used to emit all of the bands and channels needed for transmission. In particular, the single light source in the optical network of the present invention is a mode-locked laser.Type: ApplicationFiled: October 21, 2010Publication date: October 20, 2011Applicants: UNIVERSITY OF CENTRAL FLORIDA, TELCORDIA TECHNOLOGIES, INC.Inventors: Shahab Etemad, Peter Delfyett
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Publication number: 20110228939Abstract: A method for optical signal processing includes receiving an optical signal containing a plurality of frequency lines, defining at least two wavesets including an updatable random subset of the frequency lines, receiving a data stream, modulating the optical signal with the data stream, encrypting the data stream by extracting the subset of the frequency lines of the at least two wavesets from the modulated optical signal, and phase coding the subset of frequency lines of the at least two wavesets in the modulated optical signal.Type: ApplicationFiled: March 16, 2010Publication date: September 22, 2011Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Janet Jackel, Shahab Etemad, Ronald Menendez, Stefano Galli, Hossein Izadpanah
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Publication number: 20110200192Abstract: An optical communications network incorporating photonic layer security, with secure key exchange without loss of data, and a method of operating the network are disclosed. The network comprises a transmit side and a receive side. The transmit side includes first and second scramblers and a transmit side switch; and the receive side includes first and second descramblers and a receive side switch. The scramblers use encryption keys to encrypt optical signals, and the descramblers use the encryption keys to decrypt the encrypted optical signals. The encryption keys can be updated randomly and at will by installing new encryption keys on the scramblers and descramblers, and the transmit side and receive side switches are synchronized so that all of the optical signals that are encrypted using a new or updated encryption key are decrypted using the same new or updated encryption key.Type: ApplicationFiled: June 28, 2010Publication date: August 18, 2011Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Shahab Etemad, Paul Toliver
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Patent number: 7848655Abstract: The present invention relates to advances in the field of reconfigurable optical networks. In particular, the present invention provides improvements in the technology of light sources for use in optical networks. The optical network according to the present invention includes a single light source that can be used to emit all of the bands and channels needed for transmission. In particular, the single light source in the optical network of the present invention is a mode-locked laser.Type: GrantFiled: August 27, 2004Date of Patent: December 7, 2010Assignees: Telcordia Technologies, Inc., University of Central FloridaInventors: Shahab Etemad, Peter Delfyett
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Publication number: 20100289408Abstract: A photon source capable of emitting, for example, a single photon or a single pair of photons on demand. The photon source may include an excitation region where a single instance of a quantum system is excited using excitation energy. A Stimulated Raman Adiabatic Passage (STIRAP) technique can be used for exciting the quantum system to a desired energy level. The photon source may include a photon emission region physically displaced from the excitation region. A transport device can be used for controllably moving an excited quantum system from the excitation region to the photon emission region. The photon emission region may include a resonant cavity tuned to the de-excitation frequency of the quantum system for inducing de-excitation of the quantum system and emission of a photon. The photon emission resonant cavity may be switchably coupled to an output port by a tunable resonant cavity coupling device.Type: ApplicationFiled: May 10, 2010Publication date: November 18, 2010Inventors: John Madey, Eric Szarmes, Pui Kwong Lam, Shahab Etemad, Nicholas Peters, Zhensheng Jia
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Publication number: 20100232608Abstract: 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.Type: ApplicationFiled: February 23, 2009Publication date: September 16, 2010Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Giovanni DiCrescenzo, Shahab Etemad, Ronald Menendez
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Publication number: 20100221009Abstract: 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.Type: ApplicationFiled: February 22, 2010Publication date: September 2, 2010Applicants: TELCORDIA TECHNOLOGIES, INC., University of Central Florida Research Foundation, Inc. (UCFRF)Inventors: Shahab Etemad, Paul Toliver, Janet Lehr Jackel, Ronald Charles Menendez, Stefano Galli, Thomas Clyde Banwell, Peter Delfyett
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Publication number: 20100183309Abstract: 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.Type: ApplicationFiled: June 26, 2009Publication date: July 22, 2010Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Shahab Etemad, Thomas Banwell, Janet Jackel, Ronald Menendez, Paul Toliver
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Patent number: 7729616Abstract: 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.Type: GrantFiled: February 18, 2005Date of Patent: June 1, 2010Assignees: Telcordia Technologies, Inc., University of Central FloridaInventors: Shahab Etemad, Paul Toliver, Janet Lehr Jackel, Ronald Charles Menendez, Stefano Galli, Thomas Clyde Banwell, Peter Delfyett
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Publication number: 20100091990Abstract: A high data rate optical signal is inverse multiplexed into a multitude of lower-rate tributaries, each of which is coded by its unique OCDM code, and the combined coded tributaries are injected into a common phase scrambler. Coherent summation of these optically encoded tributaries pass through a shared phase or phase and frequency scrambler before exiting the secure location. The setting of the scrambler acts as the key. The authorized recipient with the correct key retrieves the ones and zeros of the several decoded signals.Type: ApplicationFiled: September 21, 2009Publication date: April 15, 2010Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Shahab Etemad, Janet Jackel, Sarry Habiby
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Publication number: 20100074444Abstract: 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.Type: ApplicationFiled: June 26, 2009Publication date: March 25, 2010Applicant: TELCORDIA TECHNOLOGIES, INC.Inventor: Shahab Etemad
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Publication number: 20070036553Abstract: 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.Type: ApplicationFiled: February 18, 2005Publication date: February 15, 2007Inventors: Shahab Etemad, Paul Toliver, Janet Jackel, Ronald Menendez, Stefano Galli, Thomas Banwell, Peter Delfyett
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Publication number: 20050069320Abstract: The present invention relates to advances in the field of reconfigurable optical networks. In particular, the present invention provides improvements in the technology of light sources for use in optical networks. The optical network according to the present invention includes a single light source that can be used to emit all of the bands and channels needed for transmission. In particular, the single light source in the optical network of the present invention is a mode-locked laser.Type: ApplicationFiled: August 27, 2004Publication date: March 31, 2005Inventors: Shahab Etemad, Peter Delfyett