LEO-to-ground optical communications using SOTA (Small Optical TrAnsponder) – Payload verification results and experiments on space quantum communications
Sign Up to like & getrecommendations! Published in 2017 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2017.07.030
Abstract: Abstract Free-space optical communications have held the promise of revolutionizing space communications for a long time. The benefits of increasing the bitrate while reducing the volume, mass and energy of the space terminals have attracted… read more here.
Keywords: optical transponder; ground; space; optical communications ... See more keywords
Dielectric Contrast Tailoring for Polarized Photosensitivity toward Multiplexing Optical Communications and Dynamic Encrypt Technology.
Sign Up to like & getrecommendations! Published in 2022 at "ACS nano"
DOI: 10.1021/acsnano.2c05114
Abstract: A selective-area oxidation strategy is developed to polarize high-symmetry 2D layered materials (2DLMs). The dichroic ratio of the derived O-WS2/WS2 photodetector reaches ∼8, which is competitive among state-of-the-art polarization photodetectors. Finite-different time-domain simulations consolidate that… read more here.
Keywords: ws2 ws2; multiplexing optical; polarization; photosensitivity ... See more keywords
Optical communications: Embracing nonlinearity
Sign Up to like & getrecommendations! Published in 2017 at "Nature Photonics"
DOI: 10.1038/nphoton.2017.144
Abstract: An innovative data transmission protocol that effectively makes an optical fibre link linear in its behaviour is shown to benefit high-speed, long-distance optical communication operating at high signal powers. read more here.
Keywords: embracing nonlinearity; optical communications; communications embracing;
Turbulence-resilient pilot-assisted self-coherent free-space optical communications using automatic optoelectronic mixing of many modes
Sign Up to like & getrecommendations! Published in 2021 at "Nature Photonics"
DOI: 10.1038/s41566-021-00877-w
Abstract: In free-space optical communications that use both amplitude and phase data modulation (for example, in quadrature amplitude modulation (QAM)), the data are typically recovered by mixing a Gaussian local oscillator with a received Gaussian data… read more here.
Keywords: space optical; optical communications; turbulence; pilot ... See more keywords
Performance characteristics of low threshold current 1.25 μm type-II GaInAs/GaAsSb ‘W’-lasers for optical communications
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/ac0b72
Abstract: Type-II ‘W’-lasers have made an important contribution to the development of mid-infrared laser diodes. In this paper, we show that a similar approach can yield high performance lasers in the optical communications wavelength range. (GaIn)As/Ga(AsSb)… read more here.
Keywords: temperature; optical communications; lasers optical; type ... See more keywords
Few-layer bismuthene for robust ultrafast photonics in C-Band optical communications.
Sign Up to like & getrecommendations! Published in 2019 at "Nanotechnology"
DOI: 10.1088/1361-6528/ab2150
Abstract: The ultrafast photonics of different conventional two-dimensional (2D) materials have been studied intensively. Few-layer structure bismuthene has been reported as a new type of 2D material with high efficient electronics, strong mechanics and outstanding photonics… read more here.
Keywords: ultrafast photonics; robust ultrafast; optical communications; layer bismuthene ... See more keywords
A Neuromorphic Silicon Photonics Nonlinear Equalizer For Optical Communications With Intensity Modulation and Direct Detection
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2900568
Abstract: We present the design and numerical study of a nonlinear equalizer for optical communications based on silicon photonics and reservoir computing. The proposed equalizer leverages the optical information processing capabilities of integrated photonic reservoirs to… read more here.
Keywords: optical communications; silicon photonics; equalizer optical; intensity modulation ... See more keywords
Recent Trends in Space Laser Communications for Small Satellites and Constellations
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.3009505
Abstract: Free-space optical communications in space can realize broadband and large-capacity communications using smaller and lower-power-consumption onboard equipment. Recently, many mega-constellation systems have been planned and launched from various countries. Although the frequency spectra will soon… read more here.
Keywords: optical communications; space laser; recent trends; laser communications ... See more keywords
Physical Limits of NanoLEDs and Nanolasers for Optical Communications
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the IEEE"
DOI: 10.1109/jproc.2019.2912293
Abstract: Nanoscale light sources are being intensively investigated for their potential to enable low-energy, high-density optical communication and sensing systems. Both nanolight-emitting diodes (nanoLEDs) and nanolasers have been considered, based on advanced nanophotonic concepts such as… read more here.
Keywords: optical communications; nanolasers optical; limits nanoleds; energy ... See more keywords
Blind Equalization and Channel Estimation in Coherent Optical Communications Using Variational Autoencoders
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal on Selected Areas in Communications"
DOI: 10.1109/jsac.2022.3191346
Abstract: We investigate the potential of adaptive blind equalizers based on variational inference for carrier recovery in optical communications. These equalizers are based on a low-complexity approximation of maximum likelihood channel estimation. We generalize the concept… read more here.
Keywords: channel; equalizers based; channel estimation; optical communications ... See more keywords
Key enabling technologies for optical communications at 2000 nm.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.000e64
Abstract: This paper discusses the potential for opening a new wavelength window at the 2 μm waveband for optical communications, showing current limitations of the system's performance. It focuses on novel results for key enabling technologies, including… read more here.
Keywords: technologies optical; optical communications; enabling technologies; communications 2000 ... See more keywords