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OPTICAL SPECTRUM DISPLAY OF BITRATE

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(joined June 2019)
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Dear Sir/Ma,
I simulated an underwater optical communication link with bit rates of 1Gbps, 100kbps and 1kbps. I was able to obtain a waveform at 1Gbps but only a straight line at 100kbps and 1kbps. What can I do to resolve this?

Regards,

Bukola Ojediran

Attachments:
  1. Doc1.docx

Responses (1):

    • #67747
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      Buki Ojed
      Participant

      Dear Sir/Ma,
      I simulated an underwater optical communication link with bit rates of 1Gbps, 100kbps and 1kbps. I was able to obtain a waveform at 1Gbps but only a straight line at 100kbps and 1kbps. What can I do to resolve this?

      Regards,

      Bukola Ojediran

      Attachments:
      1. Doc1.docx
    • #67760
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      Ahmad Atieh
      Moderator

      Hello Buki,
      Where did you measure the spectrum? I am not sure why you got a line for OSA. I need to check the setup to provide feedback.
      Please note that the laser line width is much wider than the data rate and the frequency window is relatively small.

      I am attaching an image to show you the OSA and Optical Time Domain visualizers output.

      Regards,
      Ahmad

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