Results 31 to 40 of about 10,845 (304)
Coherent Phonon‐Induced Gigahertz Optical Birefringence and Its Manipulation in SrTiO3
Advanced Science, 2023 Birefringence, which modulates the polarization of electromagnetic wave, has been commercially developed and widely used in modern photonics. Fostered by high‐frequency signal processing and communications, feasible birefringence technologies operating ...
Tao Sun +16 more
doaj +1 more source
Influence of Atmospheric Turbulence on Coherent Free-Space Optical Communications
, 2023 The development of coherent free-space optical communications systems could provide an opportunity for significantly increased data rates compared to the traditional intensity-modulation-based communications.
Gladysz, Szymon +2 more
core +1 more source
Homodyne OFDM using simple optical carrier recovery [PDF]
, 2014 We demonstrate a novel optical injection locking approach to carrier recovery in RF-pilot aided OFDM. Any need for optical pre-filtering is eliminated and only very narrow guard bands are required.
Wu, D.S. +7 more
core +1 more source
IEEE Photonics Journal, 2015 Digital coherent superposition (DCS) for optical orthogonal frequency-division multiplexing (OFDM) subcarrier pairs with Hermitian symmetry can simultaneously reduce the inter-carrier interference (ICI) from laser phase noise and cancel the fiber ...
Jing Zhang +7 more
doaj +1 more source
Amplitude-Coherent Detection for Optical Wireless Communications: Opportunities and Limitations
IEEE Open Journal of the Communications Society, 2020 The proliferation of ubiquitous computing applications created a multi-dimensional optimization problem that includes several conflicting variables such as spectral efficiency, complexity, power consumption, delay, and error probability.
Mohammad A. Al-Jarrah +3 more
doaj +1 more source
Coherent optical sources for communications [PDF]
Proceedings of the IEEE, 1970 The development of coherent optical sources, producing usable amounts of power, has provided a stimulus for communications research. Coherent sources in the form of lasers and parametric oscillators are available at wavelengths which span the entire optical spectrum.
Geusic, Joseph E. +2 more
openaire +2 more sources
IEEE Photonics Journal, 2017 Beams carrying orbital angular momentum (OAM) are very helpful in enhancing the information carrying capacity in free-space optical communications. However, atmospheric turbulence and energy attenuation will seriously affect communication quality and ...
Xiaoke Zhang +11 more
doaj +1 more source
An integrated processor for photonic quantum states using a broadband light–matter interface
New Journal of Physics, 2014 Faithful storage and coherent manipulation of quantum optical pulses are key for long distance quantum communications and quantum computing. Combining these functions in a light–matter interface that can be integrated on-chip with other photonic quantum ...
E Saglamyurek +5 more
doaj +1 more source
Advanced DSP for Coherent Optical Fiber Communication [PDF]
Applied Sciences, 2019 In this paper, we provide an overview of recent progress on advanced digital signal processing (DSP) techniques for high-capacity long-haul coherent optical fiber transmission systems. Not only the linear impairments existing in optical transmission links need to be compensated, but also, the nonlinear impairments require proper algorithms for ...
Jian Zhao, Yaping Liu, Tianhua Xu
openaire +3 more sources
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source