Results 51 to 60 of about 10,809 (212)
Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects
Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand +11 more
wiley +1 more source
Application of Low Crest Factor Modulation in Radio Communication Systems
Известия высших учебных заведений России: РадиоэлектроникаIntroduction. Radio communication systems for small Earth-orbiting objects possess a number of specific features associated with their application area, thus being expected to meet conflicting requirements.
V. V. Evstratko +4 more
doaj +1 more source
32 Gbps QPSK Optical Communication Technology Based on a New Equalizer in Atmospheric Turbulence
IEEE Access, 2021 In this paper, cascaded least mean square-least mean square (LMS-LMS) adaptive equalization scheme is proposed based on fiber coupling system, in order to improve the transmission performance of quadrature phase shift keying (QPSK) modulated optical ...
Binyu Li +3 more
doaj +1 more source
Electronics Letters, 1987 We describe a QPSK (quaternary phase shift keyed) modulator operating at gigabit data transmission rates at a carrier frequency of 13 GHz. The modulator circuit can also be operated as a QPSK demodulator. A modulator-de-modulator pair operating in tandem showed clean eye diagrams of the recovered data trains on each port up to l.5 Gbit/s with ...
R. Trambarulo, M.V. Schneider, M.J. Gans
openaire +1 more source
Squeezed‐State Semi‐Device‐Independent Quantum Randomness Generation
Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.Semi‐device‐independent quantum randomness is certified for squeezed‐coherent binary states using only their trusted overlap and the observed homodyne error. Including the deterministic extremes of the full binary‐qubit POVM gives the correct closed‐form Shannon rate.
Hamid Tebyanian
wiley +1 more source
W-Band PDM-QPSK Vector Signal Generation by MZM-Based Photonic Frequency Octupling and Precoding
IEEE Photonics Journal, 2015 We experimentally demonstrate polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulated vector signal generation at the W-band, adopting Mach-Zehnder-modulator-based (MZM-based) photonic frequency octupling and phase precoding
Xinying Li +4 more
doaj +1 more source
HELIOS ‐ Highly rEliable Links durIng sOlar conjunctionS
Radio Science, Volume 61, Issue 8, August 2026.Abstract During deep space missions, maintaining reliable communication between a spacecraft and Earth becomes particularly challenging during superior solar conjunctions, when the spacecraft passes behind the Sun relative to Earth. The highly ionized solar corona and solar wind create plasma inhomogeneities that severely affect radio signals, leading ...
A. Zeqaj +8 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 14, 27 July 2026.This study demonstrates, for the first time, a 3D volumetric cylindrical vector beam (CVB) multicasting architecture that employs multichannel array modes with an operational dimension of 3 × 3 × 5 as information carriers. This approach offers substantial potential for high‐capacity information dissemination in mode‐multiplexed communication networks ...
Zhiqiang Xie +8 more
wiley +1 more source
Photonic Modulation and Demodulation techniques for Multi-Gb/s Millimetre wave Wireless Links [PDF]
, 2010 Los sistemas de radio sobre fibra(Radio Over fibre ROF) ofrecen el ancho de banda y flexibilidad necesario para la generación y distribución de del señales inalámbricas del futuro en una arquitectura de red óptica, que reduce el coste de las redes ...
Sambaraju -, Rakesh
core +1 more source
Experimental investigation of 126-Gb/s 6PolSK-QPSK signals
, 2022 Paper We.1.C.4Abstract (40-Word Limit): We experimentally generate 28-GBd 6PolSK-QPSK signals by utilizing a high-speed 4-channel DAC and an integrated dual-polarization I/Q modulator.
Meuer, C. +8 more
core +1 more source