Coding to enhance performance of hybrid multiplexed coherent optical communication systems in the presence of ICI and SRS

M. Sathish Kumar, K. N Hari Bhat, G. Umesh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Long haul, repeaterless, coherent optical multichannel communication systems employing hybrid multiplexing schemes wherein Wavelength Division Multiplexing (WDM) and Optical Code Division Multiplexing (OCDM) are combined is analyzed in the presence of performance limiting factors such as Inter Channel Interference (ICI), Stimulated Raman Scattering (SRS) and detector shot noise. Error control coding techniques in the form of rate 1/2 convolutional codes are employed in the system to counter these performance limiting factors. It is seen that the use of error control coding technique can enhance the system performance to such an extent that a Bit Error Rate (BER) performance of less than 10-8 is achievable without crossing the SRS power threshold for as many as 1000 to 1200 channels. Advantages of the hybrid multiplexed system over systems relying solely on WDM or OCDM are also discussed along with the advantages of using error control coding compared to optical amplification in countering the performance degrading factors.

Original languageEnglish
Pages (from-to)9-16
Number of pages8
JournalJournal of Optical Communications
Volume24
Issue number1
Publication statusPublished - 02-2003

Fingerprint

Stimulated Raman scattering
Optical communication
Multiplexing
optical communication
telecommunication
Communication systems
coding
Raman spectra
Wavelength division multiplexing
interference
code division multiplexing
wavelength division multiplexing
Shot noise
Convolutional codes
multichannel communication
Hybrid systems
Bit error rate
Amplification
Detectors
shot noise

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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abstract = "Long haul, repeaterless, coherent optical multichannel communication systems employing hybrid multiplexing schemes wherein Wavelength Division Multiplexing (WDM) and Optical Code Division Multiplexing (OCDM) are combined is analyzed in the presence of performance limiting factors such as Inter Channel Interference (ICI), Stimulated Raman Scattering (SRS) and detector shot noise. Error control coding techniques in the form of rate 1/2 convolutional codes are employed in the system to counter these performance limiting factors. It is seen that the use of error control coding technique can enhance the system performance to such an extent that a Bit Error Rate (BER) performance of less than 10-8 is achievable without crossing the SRS power threshold for as many as 1000 to 1200 channels. Advantages of the hybrid multiplexed system over systems relying solely on WDM or OCDM are also discussed along with the advantages of using error control coding compared to optical amplification in countering the performance degrading factors.",
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Coding to enhance performance of hybrid multiplexed coherent optical communication systems in the presence of ICI and SRS. / Kumar, M. Sathish; Bhat, K. N Hari; Umesh, G.

In: Journal of Optical Communications, Vol. 24, No. 1, 02.2003, p. 9-16.

Research output: Contribution to journalArticle

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