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Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation

Mbah, Afamefuna Maduka; Walker, John G.; Phillips, Andrew J.

Authors

Afamefuna Maduka Mbah mafamefuna@yahoo.co.uk

John G. Walker john.walker@nottingham.ac.uk

Andrew J. Phillips andrew.phillips@nottingham.ac.uk



Abstract

A hybrid fibre and free-space optical communication link using digital pulse-position modulation (DPPM) in a wavelength-division-multiplexing system is proposed. Such a system, which could provide a power efficient, robust and flexible solution to high-speed access networks, is a contender for a passive optical network solution and could readily be deployed in areas with restrictions in optical fibre installation, or alternatively as a disaster recovery network. Interchannel crosstalk and atmospheric turbulence are major impairments in such a system and could combine in some cases to degrade the system. Both impairments are investigated here and the results are presented in the form of bit error probability, required optical transmission power and power penalties. Depending on the position of the interferer relative to the desired user, power penalties of about 0.2–3.0 dB for weak turbulence and above 20 dB for strong turbulence regimes are reported for bit error rate of 10−6. DPPM scheme with a coding level of 2 show about 2 dB improvements over on–off-keying scheme.

Citation

Mbah, A. M., Walker, J. G., & Phillips, A. J. (2016). Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation. IET Optoelectronics, 10(1), https://doi.org/10.1049/iet-opt.2015.0007

Journal Article Type Article
Acceptance Date Jun 13, 2015
Publication Date Feb 1, 2016
Deposit Date Jul 28, 2016
Publicly Available Date Jul 28, 2016
Journal IET Optoelectronics
Electronic ISSN 1751-8776
Publisher Institution of Engineering and Technology
Peer Reviewed Peer Reviewed
Volume 10
Issue 1
DOI https://doi.org/10.1049/iet-opt.2015.0007
Keywords Free-space optical links; Optical fibre networks; Optical communication devices, equipment and systems; Multiplexing and switching in optical communication
Public URL http://eprints.nottingham.ac.uk/id/eprint/35492
Publisher URL http://digital-library.theiet.org/content/journals/10.1049/iet-opt.2015.0007#
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
Additional Information This paper is a postprint of a paper submitted to and accepted for publication in IET Optoelectronics and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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