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A Novel Optical Frequency-Hopping Scheme for Secure WDM Optical Communications

open access: yesIEEE Photonics Journal, 2015
A novel optical frequency-hopping scheme in wavelength-division multiplexing (WDM) systems is proposed to achieve secure communications with high capacity. Frequency hopping is realized by the hopping of digital signals among different channels.
Sun Long Wang   +5 more
doaj   +4 more sources

A Novel Optical Frequency-Hopping Scheme Based on a Flexible Structure for Secure Optical Communications [PDF]

open access: yesIEEE Photonics Journal, 2019
A novel optical frequency-hopping scheme based on a flexible structure for secure optical communications is proposed and demonstrated. In the proposed scheme, critical users’ data are divided into a lot of segments, and these segments are ...
De Chao Ban   +5 more
doaj   +4 more sources

A Novel Optical Frequency-Hopping System Based on DFB Laser Integrated With an EA Modulator

open access: yesIEEE Photonics Journal, 2019
A novel optical frequency-hopping system based on distributed feedback laser integrated with an electroabsorption modulator is proposed and demonstrated.
Dechao Ban   +9 more
doaj   +3 more sources

Impact of organic cation dynamics on the optoelectronic and charge transport properties of the lead-free hybrid semiconductor tetraethylammonium tetrabromoferrate(iii) (TEAFeBr4) [PDF]

open access: yesRSC Advances
Hybrid organic–inorganic halometallates have emerged as a compelling class of multifunctional materials, offering a unique platform for tailoring electronic and dielectric responses through structural engineering.
Ines Khelifi   +7 more
doaj   +2 more sources

Impact of nickel doping on the optical, magnetic and electrical properties of CMFC ferrite [PDF]

open access: yesScientific Reports
The multifunctional properties of spinel ferrites can be effectively tailored through Ni substitution, particularly in systems where cation redistribution and electron hopping mechanisms govern the structural, optical, electrical, and magnetic responses.
A. M. Moustafa   +3 more
doaj   +2 more sources

Frequency-Hopping Optical Stealth Communication System Based on Supercontinuum Spectrum Laser Source

open access: yesIEEE Photonics Journal
A frequency-hopping optical stealth communication scheme based on a supercontinuum spectrum laser source is proposed and demonstrated in a proof-of-principle experiment.
Han Zhou   +9 more
doaj   +3 more sources

Photonic-Aid Flexible Frequency-Hopping Signal Generator Based on Optical Comb Filtering

open access: yesPhotonics
A novel photonics-assisted technique for generating reconfigurable frequency hopping (FH) signals is proposed and demonstrated through optical comb filtering (OCF).
Yixiao Zhou   +6 more
doaj   +3 more sources

High-Speed and Wideband Frequency-Hopping Microwave Signal Generation via Switching the Bias Point of an Optical Modulator

open access: yesIEEE Photonics Journal, 2018
A novel photonic approach to generate high-speed and wideband frequency-hopping microwave signal via switching the bias point of a dual-drive Mach-Zehnder modulator (DD-MZM) is proposed and experimentally demonstrated. The core component of the system is
Yang Chen
doaj   +3 more sources

High-Speed and wideband multilevel Frequency-Hopping microwave signal generation based on a Sagnac loop

open access: yesResults in Physics, 2023
An approach for photonic generation of multilevel frequency-hopping (FH) microwave signal based on a Sagnac loop is proposed and investigated. In the Sagnac loop, several Mach-Zehnder Interferometers (MZI), driven by the coding signals, are connected in ...
Guodong Wang   +9 more
doaj   +1 more source

A Novel Optical Frequency-Hopping Scheme Using Dual Drive Mach–Zehnder Modulator

open access: yesIEEE Photonics Journal, 2022
A novel optical frequency-hopping (OFH) scheme using dual-drive Mach-Zehnder modulator (DD-MZM) is proposed and demonstrated for secure transmission in fiber-optic networks.
Ya Jin   +10 more
doaj   +1 more source

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