Results 91 to 100 of about 10,131,834 (310)
Bit error rate measurement of free space optical communication links under laboratory controlled conditions [PDF]
, 2011 This paper outlines the experimental investigation of the fog effect on the bit error rate (BER) performance of the free space optical (FSO) communication link under a controlled laboratory environment.
Ghassemlooy, Zabih +5 more
core
Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control
Advanced Optical Materials, EarlyView.This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley +1 more source
Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications
PhotonicsFree-space optical (FSO) communication has received widespread attention as a high-bandwidth, low-latency communication technique. However, the scintillation effect caused by atmospheric turbulence leads to intensity fluctuations of the transmission ...
Bai-Shan Zhao +2 more
doaj +1 more source
Physical-Layer Security in Orbital Angular Momentum Multiplexing Free-Space Optical Communications
IEEE Photonics Journal, 2016 The physical-layer security of a line-of-sight (LOS) free-space optical (FSO) link using orbital angular momentum (OAM) multiplexing is studied. We discuss the effect of atmospheric turbulence to OAM-multiplexed FSO channels.
Xiaole Sun, Ivan B. Djordjevic
doaj +1 more source
Frontier Progress of Unmanned Aerial Vehicles Optical Wireless Technologies
Sensors, 2020 With the continuous maturity of unmanned aerial vehicles (UAV) in materials, communications, and other related technologies, the UAV industry has developed rapidly in recent years.
Jupeng Ding +4 more
doaj +1 more source
Optical-SDMA for Broadband Aeronautical Communications" [PDF]
, 2003 Broadband communication for aircraft passengers is facing one of the most promising markets of near future. While currently systems introduced in L and Ku band are already limited in bandwidth considering service provisioning to several airline fleets ...
Giggenbach, Dirk +3 more
core
, 2022 The limited bandwidth and security provided by radio frequency communications between the ground and space can be overcome with optical communications. The smaller beam divergence and high carrier frequency increase the bandwidth and brings with it the ...
Kruzins, E +5 more
core +1 more source
Deterministic Transferable Planar Dielectric Mirrors for Investigating Strong Light–Matter Coupling
Advanced Optical Materials, EarlyView.Transferable dielectric distributed Bragg reflectors enable the deterministic assembly of high‐quality planar microcavities while maintaining the intrinsic properties of quantum materials during fabrication. The resulting structures exhibit robust exciton‐photon coupling in monolayer WS2${\rm WS}_{2}$ from cryogenic to room temperature, establishing a ...
Atanu Patra +4 more
wiley +1 more source
Experimental Channel Modeling of Free-Space Optical Communications Under Atmospheric Turbulence
IEEE Open Journal of the Communications SocietyThis paper investigates the statistical modeling of atmospheric turbulence-induced fading in free space optical (FSO) communication systems via using a 400-m round-trip retro-reflected urban FSO testbed. Especially, we compare the theoretical FSO channel
Tae-In Oh, Byungju Lim, Young-Chai Ko
doaj +1 more source
Controlling the Spatial Coherence of an Optical Source Using a Spatial Filter
Applied Sciences, 2018 This paper presents the theory for controlling the spectral degree of coherence via spatial filtering. Starting with a quasi-homogeneous partially coherent source, the cross-spectral density function of the field at the output of the spatial filter is ...
Milo W. Hyde
doaj +1 more source