Two-dimensional optical code-division modulation with quantum-noise aided encryption for applications in key distribution

Sarper Ozharar; Daniel R. Reilly; Shawn X. Wang; Gregory S. Kanter; Prem Kumar

doi:10.1109/JLT.2011.2156760

Two-dimensional optical code-division modulation with quantum-noise aided encryption for applications in key distribution

Sarper Ozharar^*, Daniel R. Reilly, Shawn X. Wang, Gregory S. Kanter, Prem Kumar

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We propose and demonstrate an advanced optical modulation format that makes use of both spectral and temporal phase encodings (2-D) for applications requiring exceptional security. The method combines modulation techniques used in direct-sequence spread-spectrum coding, spectral-phase encoding, and M-ary phase-shift keying with codes generated using cryptographically secure pseudorandom number generators. The wideband transmission signal is very difficult for an eavesdropper to record or analyze. Signal-to-noise ratio limitations imposed by quantum effects enhance the security further. The properties of the transmitted signal make it especially useful for physics-based key expansion systems. We have successfully used this setup to transmit encrypted 155 Mb/s data over 70 km of fiber with a BER value of 4E-5.

Original language	English (US)
Article number	5771023
Pages (from-to)	2081-2088
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	29
Issue number	14
DOIs	https://doi.org/10.1109/JLT.2011.2156760
State	Published - 2011

Funding

Manuscript received January 31, 2011; revised May 10, 2011; accepted May 11, 2011. Date of publication May 19, 2011; date of current version June 24, 2011. This work was supported by the U.S. Air Force Research Laboratory under Contract FA9550-07-C-0038 and by the U.S. Air Force Office of Scientific Research under Grant FA9550-09-1-0593.

Keywords

Key Distribution
M-ary phase-shift keying
secure communication
spectral-phase encryption

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2011.2156760

Cite this

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title = "Two-dimensional optical code-division modulation with quantum-noise aided encryption for applications in key distribution",

abstract = "We propose and demonstrate an advanced optical modulation format that makes use of both spectral and temporal phase encodings (2-D) for applications requiring exceptional security. The method combines modulation techniques used in direct-sequence spread-spectrum coding, spectral-phase encoding, and M-ary phase-shift keying with codes generated using cryptographically secure pseudorandom number generators. The wideband transmission signal is very difficult for an eavesdropper to record or analyze. Signal-to-noise ratio limitations imposed by quantum effects enhance the security further. The properties of the transmitted signal make it especially useful for physics-based key expansion systems. We have successfully used this setup to transmit encrypted 155 Mb/s data over 70 km of fiber with a BER value of 4E-5.",

keywords = "Key Distribution, M-ary phase-shift keying, secure communication, spectral-phase encryption",

author = "Sarper Ozharar and Reilly, {Daniel R.} and Wang, {Shawn X.} and Kanter, {Gregory S.} and Prem Kumar",

note = "Funding Information: Manuscript received January 31, 2011; revised May 10, 2011; accepted May 11, 2011. Date of publication May 19, 2011; date of current version June 24, 2011. This work was supported by the U.S. Air Force Research Laboratory under Contract FA9550-07-C-0038 and by the U.S. Air Force Office of Scientific Research under Grant FA9550-09-1-0593.",

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doi = "10.1109/JLT.2011.2156760",

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AU - Kanter, Gregory S.

AU - Kumar, Prem

N1 - Funding Information: Manuscript received January 31, 2011; revised May 10, 2011; accepted May 11, 2011. Date of publication May 19, 2011; date of current version June 24, 2011. This work was supported by the U.S. Air Force Research Laboratory under Contract FA9550-07-C-0038 and by the U.S. Air Force Office of Scientific Research under Grant FA9550-09-1-0593.

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N2 - We propose and demonstrate an advanced optical modulation format that makes use of both spectral and temporal phase encodings (2-D) for applications requiring exceptional security. The method combines modulation techniques used in direct-sequence spread-spectrum coding, spectral-phase encoding, and M-ary phase-shift keying with codes generated using cryptographically secure pseudorandom number generators. The wideband transmission signal is very difficult for an eavesdropper to record or analyze. Signal-to-noise ratio limitations imposed by quantum effects enhance the security further. The properties of the transmitted signal make it especially useful for physics-based key expansion systems. We have successfully used this setup to transmit encrypted 155 Mb/s data over 70 km of fiber with a BER value of 4E-5.

AB - We propose and demonstrate an advanced optical modulation format that makes use of both spectral and temporal phase encodings (2-D) for applications requiring exceptional security. The method combines modulation techniques used in direct-sequence spread-spectrum coding, spectral-phase encoding, and M-ary phase-shift keying with codes generated using cryptographically secure pseudorandom number generators. The wideband transmission signal is very difficult for an eavesdropper to record or analyze. Signal-to-noise ratio limitations imposed by quantum effects enhance the security further. The properties of the transmitted signal make it especially useful for physics-based key expansion systems. We have successfully used this setup to transmit encrypted 155 Mb/s data over 70 km of fiber with a BER value of 4E-5.

KW - Key Distribution

KW - M-ary phase-shift keying

KW - secure communication

KW - spectral-phase encryption

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Two-dimensional optical code-division modulation with quantum-noise aided encryption for applications in key distribution

Abstract

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Keywords

ASJC Scopus subject areas

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