Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 29,
  • Issue 14,
  • pp. 2081-2088
  • (2011)

Two-Dimensional Optical Code-Division Modulation With Quantum-Noise Aided Encryption for Applications in Key Distribution

Not Accessible

Your library or personal account may give you access

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.

© 2011 IEEE

PDF Article
More Like This
Analog noise protected optical encryption with two-dimensional key space

Ben Wu, Matthew P. Chang, Bhavin J. Shastri, Zhenxing Wang, and Paul R. Prucnal
Opt. Express 22(12) 14568-14574 (2014)

LPsec: a fast and secure cryptographic system for optical connections

M. Iqbal, L. Velasco, N. Costa, A. Napoli, J. Pedro, and M. Ruiz
J. Opt. Commun. Netw. 14(4) 278-288 (2022)

Integrating key generation and distribution with the quantum noise stream cipher system without compromising the transmission performance

Yuang Li, Yajie Li, Kongni Zhu, Shuang Wei, Mingrui Zhang, Yongli Zhao, and Jie Zhang
Opt. Lett. 48(24) 6500-6503 (2023)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved