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Optical Time Domain Reflectometer (OTDR)

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(joined November 2018)
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Hello Everyone,

I would like to design an OTDR (Optical Time Domain Reflectometer) system for fault finding and localization purpose in TWDM-PON system.Here, i have to measure ReyLeigh back scatter signal.

I have found some similar design in Optisystem forum, But could not give any output at PIN/APD. Does anyone knows how to Overcome it?

Thanks
Maddy

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  • #50007
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    Maddy
    Participant

    Hello Everyone,

    I would like to design an OTDR (Optical Time Domain Reflectometer) system for fault finding and localization purpose in TWDM-PON system.Here, i have to measure ReyLeigh back scatter signal.

    I have found some similar design in Optisystem forum, But could not give any output at PIN/APD. Does anyone knows how to Overcome it?

    Thanks
    Maddy

    Attachments:
  • #50019
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    Ahmad Atieh
    Participant

    Hello Maddy,
    OptiSystem will offer phi-OTDR component and interrogator in its coming 16.0 version early next year.
    Your design is missing delay element to allow backward calculation. Also, the measured backreflected Rayleigh signal is a parametric signal represents the average backreflected signal power.

    regards,
    Ahmad

    +1

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