• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fast evaluation methods of effects of self/cross-phase modulation on WDM transmission systems

Research Project

Project/Area Number 16560336
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Communication/Network engineering
Research InstitutionKyoto University

Principal Investigator

NORIMATSU Seiji  Kyoto University, Graduate School of Informatics, Kyoto University, Associate Professor, 情報学研究科, 助教授 (20303886)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2006: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2005: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2004: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsFiber nonlinearities / WDM / optical fiber transmission / Q-factor / 相互位相変調 / 伝送特性
Research Abstract

Recently optical fiber nonlinearities dominantly affect transmission performance of wavelength division multiplexing systems, which are most common configuration for high-capacity optical fiber transmission systems. Among the nonlinearities, self-phase modulation (SPM) and cross-phase modulation (XPM) tend to take place. To assess effect of them on transmission performance numerically, split-step Fourier (SSF) method is usually utilized. Fiber length is divided into a large number of segments in the SSF method; it needs a very long calculation time to simulate long span transmission.
In this research, we develop fast evaluation method of effects of SPM/XPM on WDM transmission systems. We studied intensity modulation (IM) and differential phase modulation (DPSK).
First we studied IM systems. There are many approximations for waveform after nonlinear transmission. We utilized one of them and obtained analytical expression for standard deviation of sampled amplitude. Unfortunately there was … More approximation error in the standard deviation. Then we take both second-order SPM accompanied by first XPM and approximated higher-order SPM into account. The final expression for the standard deviation of sampled amplitude offers very good agreement with simulation results.
Secondly we studied DPSK systems, which are brought to international attention. Before studying the SPM/XPM effect on transmission performance, we studied relation between waveform degradation and bit error rate (BER). And we propose an accurate derivation method of Q-factor, which has one-to-one correspondence with a BER, from statistics of each bit in DPSK systems. The method is able to be applied to waveform distorted signals. We show our method can assess the Q-factor more accurately than conventional methods regardless of parameter settings. During this study, we have found occurrences of unusual threshold-BER curves in reception of DPSK signals distorted by SPM/XPM. Such problems have not been found in the case of IM systems. We figure out what is behind the unusual threshold-BER curves of differential binary or quadrature phase-shift keying. Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (9 results)

All 2007 2005 Other

All Journal Article (9 results)

  • [Journal Article] Statistical evaluation of transmission performance degradation originating with cross-phase modulation2007

    • Author(s)
      Seiji Norimatsu, Seiichi Akai
    • Journal Title

      Electronics & Communications in Japan. Part 1 : Communications 90・1

      Pages: 58-67

    • NAID

      110003224107

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 光差動位相検波における異常なしきい値-誤り率曲線2007

    • Author(s)
      吉田 剛, 乗松 誠司
    • Journal Title

      電子情報通信学会論文誌 J90-B・7(印刷中)

    • NAID

      110007379000

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 波形劣化した光差動位相変調信号に対するQ値導出法2007

    • Author(s)
      吉田 剛, 乗松 誠司
    • Journal Title

      電子情報通信学会論文誌 J90-B・7(印刷中)

    • NAID

      110007379001

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Statistical evaluation of transmission performance degradation originated with cross-phase modulation2007

    • Author(s)
      S.Norimatsu, S.Akai
    • Journal Title

      Electronics & Communications in Japan. Part 1 : Communications, John Wiley & Sons Inc. vol.90,no.1

      Pages: 58-67

    • NAID

      110003224107

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 相互位相変調による伝送性能劣化の統計的評価法2005

    • Author(s)
      乗松 誠司, 赤井 誠一
    • Journal Title

      電子情報通信学会論文誌 J88-B・9

      Pages: 1845-1854

    • NAID

      110003224107

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Statistical evaluation of transmission performance degradation originated with cross-phase modulation2005

    • Author(s)
      S.Norimatsu, S.Akai
    • Journal Title

      IEICE TRANSACTIONS on Communications (Japanese Edition) vol. J88-B, no. 9

      Pages: 1845-1854

    • NAID

      110003224107

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 相互位相変調による伝送性能劣化の統計的評価法2005

    • Author(s)
      乗松 誠司, 赤井 誠一
    • Journal Title

      電子情報通信学会論文誌 J88-B・5

      Pages: 1845-1854

    • NAID

      110003224107

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Unusual threshold-BER curves in optical differential phase detection

    • Author(s)
      T.Yoshida, S.Norimatsu
    • Journal Title

      IEICE TRANSACTIONS on Communications (Japanese Edition) (in press)

    • NAID

      110007379000

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Accurate Q-factor derivation from optical DPSK signals deteriorated in waveform

    • Author(s)
      T.Yoshida, S.Norimatsu
    • Journal Title

      IEICE TRANSACTIONS on Communications (Japanese Edition) (in press)

    • NAID

      110007379001

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi