Results 21 to 30 of about 6,712,674 (298)
Comparison between Direct and Coherent Optical Communication System
مجلة بغداد للعلوم, 2011 The work in this paper focuses on the system quality of direct and coherent communication system for two computers. A system quality is represented by Signal to Noise ratio (SNR) and Bit Error Rate (BER).
Baghdad Science Journal
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Low-Complexity Chromatic Dispersion Equalization FIR Digital Filter for Coherent Receiver
Photonics, 2022 This paper proposes a novel and efficient low-complexity chromatic dispersion equalizer (CDE) based on finite impulse response (FIR) filter architecture for polarization-multiplexed coherent optical communication systems.
Zicheng Wu +4 more
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Compensation of Limited Bandwidth and Nonlinearity for Coherent Transponder
Applied Sciences, 2019 Coherent optical transponders are widely deployed in today’s long haul and metro optical networks using dense wavelength division multiplexing.
Qiang Wang, Yang Yue, Jon Anderson
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Nanophotonics, 2023 The intensity distributions and statistics of partially coherent light fields with random fluctuations have proven to be more robust than for coherent light.
Lu Xingyuan +4 more
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Coherent optical communications enhanced by machine intelligence
Machine Learning: Science and Technology, 2020 Abstract Accuracy in discriminating between different received coherent signals is integral to the operation of many free-space communications protocols, and is often difficult when the receiver measures a weak signal. Here we design an optical communication scheme that uses balanced homodyne detection in combination with an unsupervised
Sanjaya Lohani, Ryan T. Glasser
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Performance optimization of free-space optical communication protocols based on results from FSO demonstrations [PDF]
, 2007 The mobile free-space optical channel mainly suffers from relatively long link outages, produced by short-term blockings of the line-of-sight (obstacles, clouds), pointing- and tracking-errors or deep signal-fades caused by index of refraction turbulence
Bernhard Epple, Epple, Bernhard
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Applied Sciences, 2020 Coherent optical transceivers offer significant advantages over direct-detect optical transceivers. However, both intradyne coherent transmitters (ICT) and intradyne coherent receivers (ICR) are more complicated and require careful calibration ...
Qiang Wang, Yang Yue
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Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]
, 2007 Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll +13 more
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IEEE Photonics Journal, 2022 In this paper, we report a novel optical data fragmentation multipath (ODFM) scheme for coherent optical communication based on electrical signal processing in simulation.
Kunpeng Zhai +6 more
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100 Gigabit Internet why and how : the technology behind it [PDF]
, 2010 The need to keep transmission capacity growing is a never ending process which is becoming more and more challenging to fulfill. Over the years we have witnessed data rates to grow from less than one bit per second all the way up to tens of Giga bits per
Glesk, I.
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