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Optical Hard Limiter

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(joined February 2018)
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Can anyone help to understand this? because this is wired & confusing!

why optical hard limiter has the blueish pulse shape at some sweeps when the bit rate is 1Tbps, but it works fine when bit rate is below 250gbps, how to solve it?

anyway i uploaded the file of optisystem 7.

Thank you.

Responses (11):

  • #47765
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    Hell Obliviate
    Participant

    Can anyone help to understand this? because this is wired & confusing!

    why optical hard limiter has the blueish pulse shape at some sweeps when the bit rate is 1Tbps, but it works fine when bit rate is below 250gbps, how to solve it?

    anyway i uploaded the file of optisystem 7.

    Thank you.

  • #47776

    can you send me your example to check this behaviour of the Optical Hard Limiter

    thanks
    Mohamed Abouseif

  • #47828
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    Hell Obliviate
    Participant

    thank you Abouseif
    here is the file
    OHL shows wired behave to it’s input near its threshold value at 1Tbps

    i don’t know why? but until i did not find any reason. this is annoying.

  • #47829
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    Hell Obliviate
    Participant
  • #47830

    Hi,
    I think you should send .zip file

    thanks
    Mohamed Abouseif

  • #47836
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    Hell Obliviate
    Participant

    why this is not uploading?

    Attachments:
    1. OHL.zip
  • #47875

    Hi Hell,
    I see what you have said in your example.
    I have tried the example titled (Optical Hard Limiter.osd) provided with OptiSystem, and it works well even with 1 Tbps.
    I think the problem with you example is that, there are two cascaded OHL, and you sweep the upper output limit.

  • #47934
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    Hell Obliviate
    Participant

    Hi Abuseuf
    I appreciate your work,
    would you please upload your work?
    thanks again.

  • #47936

    Hi Obliviate,
    here you go with my example attached.

    thanks
    Mohamed

  • #47937

    Hi

    Attachments:
    1. OHL.zip
  • #47958
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    Hell Obliviate
    Participant

    Hi Abouseif,

    yes you are absolutely right,

    OHL is malfunctioning wile connecting as cascade. when i replace OHL at source with NRZ Pulse Generator it works fine.

    So i think that optisystem team should notice this kind of issue & fixed them. 🙂

    thanking you

    hell

    Attachments:
    1. OHL-1.zip
  • #47964

    Hi Hell,
    yes, we will.

    thanks
    Mohamed Abouseif

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