Results 41 to 50 of about 875,814 (348)
Quantum Limits in Optical Communications
, 2020 This tutorial reviews the Holevo capacity limit as a universal tool to analyze the ultimate transmission rates in a variety of optical communication scenarios, ranging from conventional optically amplified fiber links to free-space communication with ...
Banaszek, Konrad +3 more
core +1 more source
Optimizing Equivalent Circuit Model Parameters of DFB Lasers With RSM Model and NSGA-II Algorithm
IEEE Photonics Journal, 2022 The parameters group of the distributed feedback (DFB) laser equivalent circuit model based on the single-mode rate equations is the key to precisely presenting DFB response characteristics, so a novel optimization solution based on the response surface ...
Qing-an Ding +9 more
doaj +1 more source
Optical Communication Through Random Atmospheric Turbulence [PDF]
, 1969 In this paper we compare the theoretical performances of two schemes of optical communication through the atmospheric turbulence: (1) heterodyne detection and (2) video detection.
Comly, Jack +2 more
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A Broadband Distributed Vibration Sensing System Assisted by a Distributed Feedback Interferometer
IEEE Photonics Journal, 2018 A distributed vibration-sensing system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) and distributed feedback interferometer (DFI) with broadband frequency response and high spatial resolution has been proposed and ...
Yuanyuan Shan +6 more
doaj +1 more source
SDM-WDM ROADM Based on Direct-Laser-Writing SDM Core Separator
IEEE Photonics Journal, 2022 Weakly-coupled space division multiplexing (SDM) techniques based on multi-core fibers (MCF) have attracted great attention for the capacity enhancement of optical interconnect systems and networks. In this paper, we propose a novel direct-laser-writing (
Yu Yang +8 more
doaj +1 more source
Krill: An exploration in underwater sensor networks [PDF]
, 2005 While sensor networks have now become very popular on land, the underwater environment still poses some difficult problems. Communication is one of the difficult challenges under water. There are two options: optical and acoustic.
Chen, P. +7 more
core +3 more sources
Subwavelength Energy Transport Along a Dielectric Nanoparticle Chain in a Metal Slot
IEEE Photonics Journal, 2013 Subwavelength energy transportation along a dielectric nanoparticle chain in a metal slot is investigated. It is demonstrated that subwavelength resonance modes with nanoscale confinement could be well achieved in the proposed waveguide, free from the ...
Bing Shen +5 more
doaj +1 more source
Broadband Photonic Down-Conversion Preprocessor for ADC With Arcsine Equalization
IEEE Photonics Journal, 2020 It is a challenge to convert broadband millimeter-wave signals directly with electronic analog-to-digital converters (ADCs). The photonic down-conversion preprocessor is a promising solution.
Rui Guo +6 more
doaj +1 more source
Continuous-variable quantum enigma machines for long-distance key distribution [PDF]
, 2015 Quantum physics allows for unconditionally secure communication through insecure communication channels. The achievable rates of quantum-secured communication are fundamentally limited by the laws of quantum physics and in particular by the properties of
Lloyd, Seth, Lupo, Cosmo
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Are there optical communication channels in the brain [PDF]
Frontiers in Bioscience, 2018 13 pages, 5 figures, review of arXiv:1607.02969 for Frontiers in Bioscience, updated figures, new references on existence of opsins in the brain and experimental effects of light on ...
Parisa Zarkeshian +4 more
openaire +6 more sources