Real-Time RF Multi-Dimensional Signal Switching Using Polarization-Dependent Optical Mixing
IEEE Photonics Journal, 2020 Real-time switching of RF signal properties, including phase, frequency, and amplitude, is essential for emerging high-speed RF systems to improve security, signal fidelity, and enhance data capacity.
Qidi Liu, Mable P. Fok
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Iraqi Journal of Physics, 2021 In this work, chemical oxidation was used to polymerize conjugated polymer "Polypyrrole" at room temperature Graphene nanoparticles were added by in situ-polymerization to get (PPY-GN) nano.
Fatima Mikdad Ahmed, Salma M. Hassan
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All-optical frequency hopping and broadcasting in wavelength-multiplexed channels
Conference on Lasers and Electro-Optics, 2020 We demonstrate all-optical routing of wavelength-multiplexed fiber-optic data streams. Utilizing an all-optical frequency processor, we show low-noise broadcasting and carrier-frequency hopping of binary data without optical-to-electrical conversion.
Joseph M. Lukens +5 more
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Ultralow Phase Noise Optoelectronic Oscillator and Its Application to a Frequency Synthesizer
Leida xuebao, 2019 We propose a novel injection-locked OptoElectronic Oscillator (OEO) with ultralow phase noise based on two cascaded phase modulators, which is further applied to construct a frequency synthesizer.
LIU Shifeng +6 more
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Area spectral efficiency of soft-decision space–time–frequency shift-keying-aided slow-frequency-hopping multiple access [PDF]
, 2012 Slow-frequency-hopping multiple access (SFHMA) can provide inherent frequency diversity and beneficially randomize the effects of cochannel interference.
Ngo, Hoang Anh +3 more
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Results in Physics, 2014 Recently, we carried out structural, optical and dielectric studies on micro-crystals of Oxypeucedanin (C16H14O5), isolated from the roots of plant Prangos pabularia (Mir et al. (2014) [3,4]).
Feroz A. Mir
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Frequency hopped CDMA for third generation mobile radio systems [PDF]
, 1993 Third generation mobile radio systems will provide unified mobile access to a wide range of services for the mass user market. Code division multiple access (CDMA) is one of the most viable access techniques to provide the flexible air interface required.
Purle, DJ +3 more
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Millisecond Spin Relaxation Times of Distinct Electron and Hole Subensembles in MA<sub>x</sub>FA<sub>1-x</sub>PbI<sub>3</sub> Perovskite Crystals. [PDF]
Adv Sci (Weinh)Mixed‐cation MAx${\rm MA}_x$ FA1−x${\rm FA}_{1-x}$ PbI3${\rm PbI}_3$ perovskite crystals reveal multiple discrete electron and hole spin subensembles associated with distinct localization environments. Optically detected magnetic resonance combined with resonant spin inertia uncovers carriers spin relaxation times reaching 2 ms and identifies nuclear ...
Hu R +6 more
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SPECTRAL AMPLITUDE CODING OCDMA SYSTEMS USING ENHANCED DOUBLE WEIGHT CODE [PDF]
Journal of Engineering Science and Technology, 2006 A new code structure for spectral amplitude coding optical code division multiple access systems based on double weight (DW) code families is proposed. The DW has a fixed weight of two.
F.N. HASOON, M.K. ABDULLAH, S. SHAARI
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A Passively Wavelength-Stabilized Mid-Infrared Optical Parametric Oscillator
Photonics, 2022 High-power and widely tunable continuous-wave optical parametric oscillators (cw OPOs), as mature radiation sources in the mid-infrared range, are limited by their frequency fluctuation.
Liemao Hu +5 more
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