Flexible multimode polymer waveguides for high-speed short-reach communication links

2018 ◽  
Author(s):  
Fengyuan Shi ◽  
Daping Chu ◽  
Richard V. Penty ◽  
Ian H. White ◽  
Nikos Bamiedakis
Keyword(s):  
High Speed ◽  
Polymer Waveguides ◽  
Communication Links

Novel Manchester-Based Multilevel Signaling for High-Speed Optical Communication Systems

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Festus Idowu Oluwajobi ◽  
Nguyen Dong-Nhat ◽  
Amin Malekmohammadi
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Chromatic Dispersion ◽  
Optical Fiber Communication ◽  
Pulse Amplitude ◽  
Calculation Model ◽  
Fiber Communication ◽  
Receiver Sensitivity ◽  
Communication Links ◽  
Dispersion Tolerance

AbstractIn this paper, the performance of a novel multilevel signaling based on Manchester code namely four-level Manchester Coding (4-MC) technique is investigated for next generation high-speed optical fiber communication links. The performance of 4-MC is studied and compared with conventional Manchester modulation and four-level pulse amplitude modulation (4-PAM) formats in terms of receiver sensitivity, spectral efficiency and dispersion tolerance at the bit rate of 40 Gb/s. The bit error rate (BER) calculation model for the proposed multilevel scheme has also been developed. The calculated receiver sensitivity and the chromatic dispersion tolerance at the BER of 10–9 of the proposed scheme are −22 dBm and 67.5 ps/nm, respectively. It is observed that, 4-MC scheme is superior in comparison to 4-PAM by 3.5 dB in terms of receiver sensitivity in back-to-back scenario. Therefore, the proposed scheme can be considered as an alternative to current 4-PAM system.

Proton upset testing of commercial high-speed optical Tx/Rx for intersatellite communication links

1999 ◽  
Author(s):  
Kyle B. Miller ◽  
Tim O'Connor ◽  
Donald A. Thompson ◽  
John Rizo ◽  
Robert W. Kaliski
Keyword(s):  
High Speed ◽  
Communication Links

Practical Evaluation of Polymer Waveguides for High-Speed and Meter-Scale On-Board Optical Interconnects

2018 ◽  
Vol 36 (16) ◽  
pp. 3486-3493 ◽  
Author(s):  
Xiao Xu ◽  
Lin Ma ◽  
Marika Immonen ◽  
Xinhong Shi ◽  
Brandon W. Swatowski ◽  
...  
Keyword(s):  
Optical Interconnects ◽  
High Speed ◽  
Polymer Waveguides ◽  
Practical Evaluation

SpaceWire

2018 ◽  
pp. 38-70
Author(s):  
Anargyros T. Baklezos ◽  
Christos N. Capsalis
Keyword(s):  
System Performance ◽  
High Speed ◽  
Data Communication ◽  
Space Missions ◽  
Development Cost ◽  
Communication Links ◽  
Recent Developments ◽  
High Speed Data ◽  
Electromagnetic Behavior ◽  
Point To Point

SpaceWire is a point-to-point bit shipping protocol for high-speed data communication links and networks providing equipment compatibility and seamless component reusability. It has found great application in many space missions reducing the development cost, offering architectural flexibility and improving reliability. This chapter delves into the standard describing the SpaceWire, focusing on the lower levels that play a key role in the electromagnetic behavior of the system and concern cable assemblies, shielding, bonding, and grounding. Findings regarding emissions affecting spacecraft components are presented as well as other EMC issues that have an impact on the system performance. Recent developments and upcoming updates to the standard are also presented and discussed.

scholarly journals Monolitic Hybrid Transmitter-Receiver Lens for Rotary On-Axis Communications

2020 ◽  
Vol 10 (4) ◽  
pp. 1540 ◽  
Author(s):  
René Kirrbach ◽  
Michael Faulwaßer ◽  
Tobias Schneider ◽  
Philipp Meißner ◽  
Alexander Noack ◽  
...  
Keyword(s):  
High Speed ◽  
State Of The Art ◽  
Power Level ◽  
Optical Power ◽  
Full Duplex ◽  
Optical Wireless ◽  
High Complexity ◽  
Optical Wireless Communications ◽  
Optical Crosstalk ◽  
Communication Links

High-speed rotary communication links exhibit high complexity and require challenging assembly tolerances. This article investigates the use of optical wireless communications (OWC) for on-axis rotary communication scenarios. First, OWC is compared with other state-of-the-art technologies. Different realization approaches for bidirectional, full-duplex links are discussed. For the most promising approach, a monolithic hybrid transmitter-receiver lens is designed by ray mapping methodology. Ray tracing simulations are used to study the alignment-depended receiver power level and to determine the effect of optical crosstalk. Over a distance of 12.5 m m , the lens achieves an optical power level at the receiver of − 16.2 dBm to − 8.7 dBm even for misalignments up to 3 m m .

scholarly journals Assessment of fog and rain induced-attenuation on terrestrial FSO links

2020 ◽  
Vol 4 (1) ◽  
pp. 37-44
Author(s):  
M. O. Ajewole ◽  
P. A. Owolawi ◽  
J. S. Ojo ◽  
R. M. Adetunji
Keyword(s):  
High Speed ◽  
Rain Rate ◽  
Outer Space ◽  
Atmospheric Conditions ◽  
Wireless Communication Network ◽  
5G Network ◽  
Link Margin ◽  
Communication Links ◽  
Atmospheric Channel ◽  
A Current

Launching into the next generation of wireless communication network (5G network) requires secure highdata rate, high speed and huge bandwidth links. With the tremendous increase in broadband users, the existingcommunication systems such as radio frequency (RF) and microwave links cannot meet up with the challenges due totheir link interference and low bandwidth. A current technology that promises such requirements and more is FreeSpace Optical (FSO) communication. The FSO basically involves the transmission of signal-modulated opticalradiation from a transmitter to a receiver through the atmosphere or outer space. It is designed to complement thetraditional fibre optical communication links. However, location-variant atmospheric channel degrades the qualityand performance of an FSO system under severe atmospheric conditions. This paper attempts to assess both fog- andrain-induced attenuation on the performance of FSO link in a terrestrial terrain using measured visibility and rainrate data at Akure, Nigeria. 5-year (2012-2016) archived visibility data and measured rain rate data of 1-minuteintegration time obtained from Nigerian Meteorological Agency (NIMET) and the Department of Physics, FederalUniversity of Technology, Akure respectively, were used to compute the fog- and rain-induced specific attenuationsusing Kruse and Carboneur models. The performance of the FSO system was analyzed through link margin by usingthe parameters of a commercial optical transceiver, Terescope 5000. Findings from this work will be useful for FSOsystem design in the area.

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