Relevant bibliographies by topics / Laser communication systems. Electromagnetic interference. Wavelength division multiplexing

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Laser communication systems. Electromagnetic interference. Wavelength division multiplexing'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Laser communication systems. Electromagnetic interference. Wavelength division multiplexing"

1

Dayal, Navneet, Preeti Singh, and Pardeep Kaur. "Relay-assisted WDM-FSO System: A Better Solution for Communication under Rain and Haze Weather Conditions." Journal of Telecommunications and Information Technology 4 (December 20, 2017): 54–59. http://dx.doi.org/10.26636/jtit.2017.113917.

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Among various conventional wireless communication systems, Free Space Optics (FSO) may be distinguished as well, which provides a good level security, high data rates, an enormous bandwidth and negligible susceptibility to electromagnetic interference. The main problem arises with unfavorable weather conditions, which affect the system’s parameters and require an aversion to other paths. The weather conditions discussed are rain and haze. Elimination of their adverse effects is essential for establishing a better communication system. The routing path is a major issue, as its decreased parameters lead to the diversion of the transmitted signal or to its total loss. In this article, increased system path length and proficiency levels are demonstrated by using relays, which are assisted by Wavelength Division Multiplexing (WDM).
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2

Mahajan, Suraj, Preeti Gupta, and Vijay Kumar. "Analysis of 64 channels based IS-OWC system using different intereference reduction techniques." Journal of Optical Communications, October 6, 2020. http://dx.doi.org/10.1515/joc-2020-0169.

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AbstractOptical wireless communication in space is attracting great consideration due to high speed, high capacity, no EMI, high security, and wide bandwidth. OWC has edge over microwave communication because in laser based communication, relay feature saves the time of the system. In this paper, different interference reduction techniques in wavelength division multiplexing based inter-satellite optical wireless system are presented at different data rates 10, 20, and 40 Gbps. Hybrid multiplexing using wide division multiplexing and time division multiplexing is proposed first and second technique proposed is polarization interleaving in IsOWC systems. Dense channel spacing system with diverse modulations is investigated further such as Chirped, differential phase shift keying, and alternate mark inversion (AMI). Q factor is the performance evaluation parameters for different distances.
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3

Xiang-Peng, CAI. "A Cost-Efficient RGB Laser-Based Visible Light Communication System by Incorporating Hybrid Wavelength and Polarization Division Multiplexing Schemes." Frontiers in Physics 9 (August 26, 2021). http://dx.doi.org/10.3389/fphy.2021.731405.

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Visible light communication (VLC) has been proven a promising technology to counter the limitations of radio frequency (RF) communication technology such as high interference and high latency issues. VLC offers high bandwidth as well as immunity to interference from other electromagnetic spectrums. Due to these features, VLC can be an excellent solution for biomedical and healthcare applications for transmission of body sensor signals and other crucial patient information. In this work, a highly efficient VLC system is designed to transmit six channels, with each one carrying 10 Gbps of data, over a 500 m optical fiber link and a 200 cm VLC link. To make the VLC system cost effective, simple and efficient on-off keying (OOK) (non-return to zero) is used as the encoding scheme. Moreover, to further enhance the capacity and bandwidth of the proposed VLC system, hybrid wavelength division multiplexing (WDM) and polarization division multiplexing (PDM) schemes are incorporated by using red, green, and blue lasers. The reported results show the successful transmission of all channels (6 × 10 Gbps) over 500 m optical fiber and 200 cm of VLC link.
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4

Kaur, Rupinder, and Kuldeepak Singh. "Performance Analysis of Shift ZCC Codes and Multi Diagonal Codes in 100 Gbps MDM-FSO System." Journal of Optical Communications, April 18, 2020. http://dx.doi.org/10.1515/joc-2019-0264.

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AbstractWith the rapid growth in the internet applications, pressure is observed on the optical communication systems. Free space optical communication (FSO) is very important alternative to the optical fiber because of elimination of licenses, trenching, and no cost of ways and saves the time of installation. Wavelength division is capacity enhancement multiplexing but due to large number of laser requirements, it becomes expensive. Mode division multiplexing (MDM) is suitable multiplexing technique because it needs only single laser and can support high data rates. Optical code division multiplexing and MDM is demonstrated in this work at 100 Gbps over FSO supporting 10 users. Multiple access interference is prominent issue in OCDMA codes and in order to suppress MAI, zero cross correlation codes are used and use of Laguerre Gaussian modes has been done. Different fog conditions are analyzed and two different OCDMA cods are incorporated as well as compared in the proposed system such as shift zero cross correlation codes and multi diagonal codes in terms of Q factor and BER.
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Dissertations / Theses on the topic "Laser communication systems. Electromagnetic interference. Wavelength division multiplexing"

1

Gross, Michael Charles. "High-rate, short-pulse sources:jitter and pedestal level in optical time-division multiplexing." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5405.

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Gross, Michael Charles. "High-rate, short-pulse sources jitter and pedestal level in optical time-division multiplexing /." Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04082004-180157/unrestricted/gross%5Fmichael%5Fc%5F200312%5Fphd.pdf.

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