Results 91 to 100 of about 35,798 (210)

Wideband Anti-Jamming Based on Free Space Optical Communication and Photonic Signal Processing. [PDF]

Sensors (Basel), 2021
Wu B, Qi Y, Qiu C, Tang Y.
europepmc   +1 more source

Performance of the coherent optical binary polarization-shift-keying heterodyne system in free space optical communications using a lognormal atmospheric turbulence model MIC-CPE 2010

, 2010
In this paper, simulation results for the bit error rate (BER) performance and fading penalty of a coherent optical binary polarization shift keying (2PolSK) heterodyne system adopted for free space optical (FSO) communication links with a log-normal ...
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Tang, Xuan, Rajbhandari, Sujan, Lee, Chung Ghiu   +4 more
core  

Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems. [PDF]

Light Sci Appl, 2021
Portnoi M, Haigh PA, Macdonald TJ, Ambroz F, Parkin IP, Darwazeh I, Papakonstantinou I.   +6 more
europepmc   +1 more source

An Introduction to Free-space Optical Communications

Radioengineering, 2010
Over the last two decades free-space optical communication (FSO) has become more and more interesting as an adjunct or alternative to radio frequency communication. This article gives an overview of the challenges a system designer has to consider while implementing an FSO system. Typical gains and losses along the path from the transmitter through the
Henniger, Hennes, Wilfert, Otakar
openaire   +3 more sources

Lasers for free-space optical communications

III-Vs Review, 2001
AbstractFree-space optics (FSO) - or telecoms systems based on free space lasers (FSLs) - have attractions as an alternative to existing signal conduits such as fibre or wireless. They offer high data rates (about 1 Gb/s) and can be as much as a fifth the cost of underground fibre.
openaire   +1 more source

Subcarrier intensity modulated free-space optical communication systems

This thesis investigates and analyses the performance of terrestrial free-space optical communication (FSO) system based on the phase shift keying pre-modulated subcarrier intensity modulation (SIM).
Popoola, Wasiu Oyewole
core  

Research Progress of Passive Modulation in Free Space Optical Communication

Guangtongxin yanjiu
【Objective】Traditional Free Space Optical (FSO) communication requires both ends of the communication to be installed at the same time, including the laser transmitting system, laser receiving system and acquisition, tracking and aiming system.
LI Xiaopeng, WEI Mengxia, ZHU Zhanke, KE Xizheng   +3 more
doaj  

Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path

, 2006
An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas, K. Zettl, Knapek, Markus, Zettl, Karl, H. Henniger, Giggenbach, Dirk, D. Giggenbach, Henniger, Hennes, Horwath, Joachim, J. Horwath, N. Perlot, M. Knapek   +11 more
core   +1 more source

High speed train communications systems using free space optics

, 2010
In this work, we propose a broad-band free space optical (FSO) wireless communications system for high-speed trains. The system consists of optical transceivers positioned outside the train and along the railway track.
Ghassemlooy, Zabih, Paudel, Rupak, Rajbhandari, Sujan, Le Minh, Hoa, Iaz, M.   +4 more
core  

Prediction of Power Fluctuations of Gaussian Beams After Transmission Through Turbulent Atmosphere

Photonics
As laser beams propagate through free space, power fluctuation occurs due to atmospheric turbulence, which significantly increases the bit error rate of free-space optical communication. If the precise prediction of power fluctuations can be achieved, it
Zhihao Wan, Jiayi Zhu, Cheng Huang, Zhimin He, Jun Zeng, Fuchang Chen, Chaoqun Yu, Yan Li, Huanting Chen, Yongtao Zhang, Jixiong Pu, Huichuan Lin   +11 more
doaj   +1 more source