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why this error message ????

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    • January 28, 2015 at 3:50 pm #17349
      ahmedbasuony
      Participant

      why i found this error message “encountered an improper argument” when run BER Analyzer when i convert the data rate from 10 gb/s to 40 gb/s it works well with 10 gb/s ????

      and the second question when i am using 10 gb/s and every ring connected to itself without OXC i found that have low quality factor than when two ring connected with two OXC but this not logic why???

    • February 2, 2015 at 4:16 am #17384
      ahmedbasuony
      Participant

      please any one help me

      • February 2, 2015 at 9:29 am #17392
        Damian Marek
        Participant

        Hi Ahmed,

        I am looking into this, but the project file is pretty complex! Do you have any article that explains how this system is supposed to function just so I have a reference?

        Thanks,
        Damian

    • February 6, 2015 at 3:20 am #17490
      ahmedbasuony
      Participant

      i attached now the file that you build it to me in other post and also the same problem with error message “encountered an improper argument” when run BER Analyzer at data rate 40 gb/s but it works well with 10 gb/s

    • February 10, 2015 at 1:35 am #17548
      ahmedbasuony
      Participant

      please any one help me because i am don’t know if this problem from the optiwave program itself or from error in design.

      • February 17, 2015 at 10:28 am #17589
        Damian Marek
        Participant

        Hi Ahmed,

        I have not forgotten about this project! Last week I was out of office at a show, so I didn’t have time to look at it. I have returned to the office and I am troubleshooting it now.

        Regards

    • February 17, 2015 at 3:42 pm #17597
      Damian Marek
      Participant

      Hi Ahmed,

      I replaced all of the EDFA Black Box components with the Optical Amplifier component, because there seems to be a bug with the black box component when using the ASE. The project works fine now, except the signal is very noisy, you may want to change either the photodetector settings to lower the thermal noise or increase the gain of the amplifiers from 0.3 dB to something larger.

      Thanks for bringing this to our attention and we will provide a fix to this issue in the future!

    • February 18, 2015 at 2:07 am #17614
      ahmedbasuony
      Participant

      ok thank you very much for your effort ,today i will check it and give you my response ,
      again thank you very much

    • February 22, 2015 at 12:51 am #17691
      ahmedbasuony
      Participant

      thank you Damian Marek but it have noise more than in case of EDFA

    • February 22, 2015 at 12:54 am #17692
      ahmedbasuony
      Participant

      SO what can i do in this noise ? or use edfa for limitted number of node and frequency and i want to know if edfa have a relation between them and frequency and also between edfa and data rates or it must work at any frequency and data rates

      • February 23, 2015 at 9:55 am #17715
        Damian Marek
        Participant

        The Optical Amplifier is a simpler model and doesn’t have a relation between wavelength and gain. I would simply use it first to make sure the simulation is running successfully. You can change the noise power with the noise figure option or completely disregard the noise by unchecking Include Noise.

        Once your simulation is working with this simple model, try using a more advanced model like the EDFA component or the Optical Fiber Amplifier. These include options for a wavelength dependent noise/gain distribution.

        Regards

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