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Photodiode

(joined August 2015)
Participant

Please go through the attached snapshot, unable to understand how to make the connections,
Red line for optical and blue line for eletrical domain.

With regards

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Responses (9):

    • #24256

      Please go through the attached snapshot, unable to understand how to make the connections,
      Red line for optical and blue line for eletrical domain.

      With regards

      Attachments:
    • #24258
      Profile Photo
      alistu
      Participant

      Hi Dhiman,

      With regard to the system snapshot you have attached in the other topics, I think the image is related to coherent optical detection, so OC stands for optical coupler in here. I have attached an image which depicts how you can make the connections for coherent detection. Use one for I signal and one for Q signal.

      Regards.

      Attachments:
      +2
    • #24262

      Thanks alistu, Hope it will definitely help me. Hope to get more help in future.

      +1
      • #24264
        Profile Photo
        alistu
        Participant

        You’re welcome Dhamin. Let me know if it helps.

    • #24266
      Profile Photo
      Ashu verma
      Participant

      Agree with Alisthu,you can check the tutorials and you can easily get help.Check the link,optiwave examples like DPSK and DQPSK used this type of detection

      Advanced Modulation Formats

    • #24269

      Thanks alistu and sam sung.

      • #24284
        Profile Photo
        alistu
        Participant

        You’re welcome Dhiman. I have used pin photodetectors in my snapshot. You can act according to the paper whose results you are trying to reproduce. You can also use the “optical Coherent QAM receiver’ component from Optisystem library. In that case, you will not need a CW laser and you get to choose the type of photodetector in the component properties.

    • #24271
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      Ashu verma
      Participant

      Welcome Dhiman,you have raised some good issues.Keep it up and help other members too.

    • #24286
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      MHD NA
      Participant

      Hi Dhiman Kakati; i think your attached snapshot doesn’t work in optisystem by the shown manner so you should follow the snapshot attached by alistu.

    • #24287

      Thanks namera, I will try it.

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