Home Forums FIBER dp-qpsk in wdm with spectrum efficiency >1 or >2

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    • #19107
      Shivam Anand
      Participant

      made this osd… problem in getting correct constellation diagram for qpsk.. also ber test not showing error…
      please help in improvising urgently…

    • #19198
      Damian Marek
      Participant

      Your two transmitters contain approximately 40 GHz of bandwidth but they are separated by only 25 GHz of channel spacing. They are intefering with each other.

      Regards

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