Home Forums SYSTEM dispersion compensate

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    • #28865
      san lymit
      Participant

      Dear,

      I wonder that when we compensate the optical fiber by using DCF. Does the length of DCF include in the total length of the fiber. For Example, we use 100Km for signal mode fiber and 20Km DCF. So the total length is 120Km, right?

      Best regards,

      San

    • #28868
      alistu
      Participant

      Hi San,

      The length of the dispersion compensating fiber is also included in the overall channel length indeed, even though the DCF is used to help fighting channel dispersion (yet sometimes it is mentioned that the DCF has been used in a system, for example a passive optical network, or not to achieve a mentioned reach).

      Regards

    • #28871
      Alessandro Festa
      Participant

      I would not say that. DCF is used “outside” the real span reach (tipically in a premplifier mid-stage), so the system budget should not take into account the DCF amount.

      +1
    • #28873
      san lymit
      Participant

      Thank you!

    • #28881
      san lymit
      Participant

      I can’t open ieeexplore link.How can I open it?

      • #28882
        alistu
        Participant

        There should be no problem opening the given link as I examined it again by clicking on it and managed to open it. However, you should either be an IEEE member to be able to download the .PDF file or you should buy it. Unfortunately, I cannot upload the file or send it due to copyright issues.

    • #28887
      alistu
      Participant

      Hi San,

      In case you have problem having access to the above file to see my point, you can refer to other papers such as “1.05 Tb/s optical-OFDM using RoF over 3600 km” by Almasoudi just as examples where the DCF is considered in the length of the channel. You can find the paper by searching in google.

      Regards

    • #28916
      san lymit
      Participant

      Thank you,Alistu!

      • #28922
        alistu
        Participant

        You’re welcome San.

        Regards

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