This paper proposes a chaotic constellation transformation (CCT) technique for physical-
layer security enhancement in orthogonal frequency-division multiple access based passive …

The focus of this work is to consolidate a review of accomplished research in the field of
optical code division multiple accesses (OCDMA), to outline the state-of-the-art comparison …

We propose a novel physical layer security-enhanced digital filter multiple access-based
passive optical network (DFMA-PON), for the first time to our best knowledge, by using …

Modern networks implement multilayer encryption architecture to increase network security,
stability, and robustness. Encryption on the lower layers is essential for the safety of the …

All-optical AND/XOR gates are proposed for non-return-to-zero (NRZ) data using
semiconductor optical amplifier-based Mach–Zehnder interferometers (SOA-MZIs). For …

Confidentiality performance is analyzed in detail for a 2-D incoherent optical code-division
multiple access (OCDMA) system, especially a multi-user two-code-keying wavelength …

An all-optical scheme based on periodically-poled lithium niobate (PPLN) waveguide for
signal processing of the in-phase (I) and quadrature (Q) components of an input quadrature …

This paper presents the integrated circuit design methodology of ultrafast encryption and
decryption circuits for optical processing and communication at 40 and 120 Gb/s. The …

Optical codes with large cardinality and tree structures of multiple subsets of codewords for
adjustable code performance and cardinality have recently been proposed. As studied in …

Data security at the physical layer of optical networks, or optical layer security, has received
considerable research attention due to the rapid growth of optical network capacity [1] …