Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optical Fiber Communication Conference

Passive Scrambling and Unscrambling for Secure Fiber Optic Communications

Shenping Li, Daniel Nolan, Dmitri V. Kuksenkov, Roe Hemenway

Published Feb 1, 2008• 3 citations
Publisher

Abstract

We propose an all-fiber based approach to scramble and un-scramble optical signal for secure fiber optic communications. A scrambler and un-scrambler pair with an operation range from 0.8 Gb/s to 1.4 Gb/s was demonstrated.
DOI
10.1109/ofc.2008.4528238

Related papers

Gb/s physical-layer secure key generation and distribution in fiber communications

Liuming Zhang, Xinran Huang, Erich Leitgeb +1 more

We present the high-speed physical-layer secure key generation and distribution in fiber networks. A key generation rate of 2.7 Gb/s is achieved over 10 km single-mode fiber using a specifically-designed bidirectional polarization scrambler.

International Conference on Optical Communications and Networks (ICOCN)•Aug 23, 2021•0 citations

Enhancing Data Security in Optical Fiber Communication Through Dual Layer Encryption with Randomized Phases

Kh Arif Shahriar, Mostafa Khalil, Adrian Chan +3 more

We experimentally demonstrate a novel encryption technique that implements physical layer security in optical fiber communication through two layers of phase randomization. 160 Gb/s transmission over 80 km of SMF is achieved with 16-QAM modulation.

Frontiers in Optics•Jan 1, 2022•4 citations

Scrambled coherent superposition for enhanced optical fiber communication in the nonlinear transmission regime

Xiang Liu, S. Chandrasekhar, Peter J. Winzer +6 more

Coherent superposition of light waves has long been used in various fields of science, and recent advances in digital coherent detection and space-division multiplexing have enabled the coherent superposition of information-carrying optical signals to achieve better communication fidelity on amplified-spontaneous-noise limited communication links. However, fiber nonlinearity introduces highly correlated distortions on identical signals and diminishes the benefit of coherent superposition in nonlinear transmission regime. Here we experimentally demonstrate that through coordinated scrambling of signal constellations at the transmitter, together with appropriate unscrambling at the receiver, the full benefit of coherent superposition is retained in the nonlinear transmission regime of a space-diversity fiber link based on an innovatively engineered multi-core fiber. This scrambled coherent superposition may provide the flexibility of trading communication capacity for performance in future optical fiber networks, and may open new possibilities in high-performance and secure optical communications.

Optics Express•Aug 3, 2012•28 citations

Secure communications by optical homodyne

Willard H. Wells, Russel Stone, E. Miles

It is shown that optical homodyne techniques offer a family of schemes for secure communications. Following some background in secure optical communications, a particular scheme is described and compared to cryptography. The scrambler built is also described, and security is discussed. Experimental results for point-to-point links in single-mode polarization-maintaining fibers are presented. Various enhancements and network compatibility are analyzed.>

IEEE Journal on Selected Areas in Communications•Jun 1, 1993•28 citations

Physical-Layer Secure Optical Communication Based on Private Chaotic Phase Scrambling

Anke Zhao, Ning Jiang, Shiqin Liu +2 more

We propose a novel high-speed physical-layer secure optical communication scheme based on private synchronous chaotic phase scrambling, and experimentally demonstrate an exemplary 25-Gbps secure QPSK transmission over 50-km single-mode fiber.

Opto-Electronics and Communications Conference (OECC)•Jan 1, 2021•1 citation

Physical Layer Encryption for WDM Optical Communication Systems Using Private Chaotic Phase Scrambling

Anke Zhao, Ning Jiang, Shiqin Liu +2 more

Protecting the security of optical network is a major worldwide challenge. The conventional schemes for securing communications are based on cryptography at the MAC layer and its higher layers, which are facing a great threat with the development of quantum computers. Optical encryption is a promising way for building security on the physical layer of optical communications. In this work, we propose a novel optical encryption scheme for wavelength division multiplexing (WDM) fiber-optic communication systems, by utilizing the private chaotic phase scrambling. Secure transmission of 50 Gbps signal over 50-km standard single-mode fiber is experimentally and numerically demonstrated. The results show that the WDM signal is efficiently encrypted into a noise-like signal, due to the spectral broadening effect of chaotic phase scrambling. Since the processes of encryption and decryption are totally implemented in the optical domain, the proposed scheme can encrypt the entire network traffic with low latency and high speed. Moreover, the proposed encryption scheme is compatible with the existing WDM optical networks, and only one pair of encryption and decryption devices is sufficient to encrypt all WDM channels, thus the scheme can be easily implemented at low hardware cost.

Journal of Lightwave Technology•Feb 9, 2021•132 citations
Coherent superposition of light waves has long been used in various fields of science, and recent advances in digital coherent detection and space-division multiplexing have enabled the coherent superposition of information-carrying optical signals to achieve better communication fidelity on amplified-spontaneous-noise limited communication links. However, fiber nonlinearity introduces highly correlated distortions on identical signals and diminishes the benefit of coherent superposition in nonlinear transmission regime. Here we experimentally demonstrate that through coordinated scrambling of signal constellations at the transmitter, together with appropriate unscrambling at the receiver, the full benefit of coherent superposition is retained in the nonlinear transmission regime of a space-diversity fiber link based on an innovatively engineered multi-core fiber. This scrambled coherent superposition may provide the flexibility of trading communication capacity for performance in future optical fiber networks, and may open new possibilities in high-performance and secure optical communications.
Protecting the security of optical network is a major worldwide challenge. The conventional schemes for securing communications are based on cryptography at the MAC layer and its higher layers, which are facing a great threat with the development of quantum computers. Optical encryption is a promising way for building security on the physical layer of optical communications. In this work, we propose a novel optical encryption scheme for wavelength division multiplexing (WDM) fiber-optic communication systems, by utilizing the private chaotic phase scrambling. Secure transmission of 50 Gbps signal over 50-km standard single-mode fiber is experimentally and numerically demonstrated. The results show that the WDM signal is efficiently encrypted into a noise-like signal, due to the spectral broadening effect of chaotic phase scrambling. Since the processes of encryption and decryption are totally implemented in the optical domain, the proposed scheme can encrypt the entire network traffic with low latency and high speed. Moreover, the proposed encryption scheme is compatible with the existing WDM optical networks, and only one pair of encryption and decryption devices is sufficient to encrypt all WDM channels, thus the scheme can be easily implemented at low hardware cost.