Results 31 to 40 of about 6,712,674 (298)

Alamouti-Type STBC for Atmospheric Optical Communication Using Coherent Detection

IEEE Photonics Journal, 2014
Alamouti-type space-time block coding is studied for optical wireless communication systems using coherent detection over atmospheric turbulence channels.
Mingbo Niu, Julian Cheng, Jonathan F. Holzman   +2 more
doaj   +1 more source

DSP-Based Physical Layer Security for Coherent Optical Communication Systems

IEEE Photonics Journal, 2022
A novel digital signal processing (DSP)-based scheme for physical layer security in coherent optical communication systems is proposed and numerically investigated.
Jiaxiang He, Roger Giddings, Wei Jin, Jianming Tang   +3 more
doaj   +1 more source

Stochastic Backpropagation for Coherent Optical Communications [PDF]

, 2011
We present stochastic backpropagation, a novel maximum a posteriori detection method for coherent optical communication. The proposed detector is shown to outperform conventional backpropagation in a scenario where nonlinear phase noise is the dominant ...
Yan Gong, Jiang, Nan, Karlsson, Magnus, Jiang, Nan,, Henk Wymeersch, Johannisson, Pontus,, Agrell, Erik,, Andrekson, Peter, Nan Jiang, Karlsson, Magnus,, Agrell, Erik, Erik Agrell, Johannisson, Pontus, Gong, Yan,, Pontus Johannisson, Wymeersch, Henk,, Wymeersch, Henk, Gong, Yan, Karout, Johnny, Peter Andrekson, Karout, Johnny,, Magnus Karlsson, Johnny Karout, Andrekson, Peter,   +23 more
core   +1 more source

Generation and Transmission of High Symbol Rate Single Carrier Electronically Time-Division Multiplexing Signals

IEEE Photonics Journal, 2016
We experimentally investigate the generation and transmission of high-symbol-rate single-carrier signals based on the electronically time-division multiplexing (ETDM) method.
Junwen Zhang, Jianjun Yu
doaj   +1 more source

All-optical pulse processing for advanced photonic communication system [PDF]

, 2008
This paper investigates the use of a two-photon absorption photodetector for high speed processing of ultrashort optical pulses in advanced photonic communication systems. Specifically the paper describes how the two-photon absorption photodetector maybe
Guo, Wei Hua, O\u27Dowd, John, K. J. Dexter, O'Dowd, John, Donegan, John Francis, W.H. Guo, A.L. Bradley, P.J. Maguire, Dexter, Karl J., Reid, Douglas A., Barry, Liam P., K. Bondarczuk, Bondarczuk, Krzysztof, Lynch, Michael, D.A. Reid, J. O'Dowd, J.F. Donegan, Bradley, Ann Louise, L.P. Barry, Maguire, Paul J., M. Lynch   +20 more
core   +2 more sources

Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals [PDF]

, 2006
In the Capanina project, it has been shown that it is possible to use solely GPS positions for coarse-pointing of a stratospheric free-space optical communication terminal.
Bernhard Epple, Epple, Bernhard
core   +1 more source

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

, 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

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Modeling of Nonlinear Interference in the Same- Wavelength Bidirectional Coherent Fiber Communication Systems

IEEE Photonics Journal, 2023
A detailed theoretical study is conducted on the nonlinear interference in the same-wavelength bidirectional coherent optical fiber communication systems.
Yuan Li, Chengcheng Wu, Peili He, Wei Li, Shaohua Yu, Ming Luo, Zhongshuai Feng, Muyang Mei, Qianggao Hu, Liyan Huang, Haitao Li   +10 more
doaj   +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 [PDF]

, 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