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Interrelated lithium-ion transport, NTCR behavior, and dielectric-optical coupling in multifunctional Li₃Mg₂NbO₆ ceramic. [PDF]

RSC Adv
Aydi S, Bouzayani MM, Boukriba M, Nasri S, Radhi Alzoubi O, Oueslati A.   +5 more
europepmc   +1 more source

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Optical Frequency Hopping Techniques for Secure Fiber-Optic networks

2021 12th International Conference on Information, Intelligence, Systems & Applications (IISA), 2021
Optical networks’ physical layer is vulnerable to a variety of attacks, such as jamming, eavesdropping, and, finally, interception. Optical technology may have focused mainly on the more bandwidth race, but the issue of securing the physical layer needs the proper attention.
Giannis Tzimas, Charalampos Papapavlou, Konstantinos Paximadis   +2 more
exaly   +2 more sources

An optical frequency-hopping scheme based on phase modulator-embedded optical loop mirror

Optics Communications, 2019
Abstract An optical frequency-hopping scheme using phase modulator-embedded optical loop mirror (PME-OLM) is proposed, analyzed and demonstrated to achieve long distance secure communications. In the proposed system, the data from every user are separated into small data segments in time domain and carried by different wavelength carriers instead of ...
Yinfang Chen
exaly   +2 more sources

Agile frequency-hopping microwave waveform generation by a semiconductor laser subject to optical injection

2016 25th Wireless and Optical Communication Conference (WOCC), 2016
A novel scheme for frequency-hopping (FH) microwave waveform generation is proposed based on a semiconductor laser subject to optical injection. In the proposed system, the optically injected semiconductor laser is operated in period-one oscillation state.
Fangzheng Zhang, Pei Zhou, Shilong Pan   +2 more
exaly   +2 more sources

A frequency-hopping system based on optical frequency comb

3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 2023
Yu Liang, shaobo Li, Xiang Ma, wenqi yu, anni Liu, Yandan Liu, guansu xing, lei zhang, xiaodong liang, qingsong luo   +9 more
exaly   +2 more sources

Fast frequency hopping codes applied to SAC optical CDMA network

Optical Fiber Technology, 2015
Abstract This study designed a fast frequency hopping (FFH) code family suitable for application in spectral-amplitude-coding (SAC) optical code-division multiple-access (CDMA) networks. The FFH code family can effectively suppress the effects of multiuser interference and had its origin in the frequency hopping code family.
Shin-Pin Tseng
exaly   +2 more sources

Carrier frequency hopping for optical pulse transmission in dispersion-managed fiber systems

Optics Communications, 2003
Abstract We present a fiber transmission system combining dispersion management with periodical hopping of channel frequencies by means of wavelength converters. We show that the signal distortion arising from chirp reversal may be substantially suppressed for optimized dispersion-managed links.
Alessandro Tonello, Fabrizio Carbone, Luciano Socci, Marco Romagnoli   +3 more
openaire   +2 more sources

Full W-band Photonic Frequency Hopping Generator Based on High-order Optical Frequency Multiplication

2023 International Topical Meeting on Microwave Photonics (MWP), 2023
Feiliang Chen, Zhiyao Zhang, Fan Yang
exaly   +2 more sources

Optical frequency-hop multiple access communications system

ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220), 2002
We propose fast optical frequency-hop code division multiple access (FH-CDMA) for high bandwidth local area networks. Encoding and decoding are achieved by tunable fiber Bragg gratings. Frequency hopping offers many advantages compared to the previously proposed optical CDMA multiple access techniques.
Habib Fathallah, Leslie A. Rusch, Sophie LaRochelle   +2 more
openaire   +2 more sources