Home Forums SYSTEM Ng Pon 2 Simulation

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    • #34060
      Nguyen Hai Ha
      Participant

      Hi every one
      That’s my honor to receive your helping about my problem, especially, all of you had very well knowledge about optical network system. At present, im doing my thesis about Analysis of performances of (NG-PON2) for FTTH systems: Performance on single channel transmission. I based on attached document

      But they using VPI and i cant use and buy this software. Im trying work with Optisystem 7 and download some of your .osd in this topic: https://optiwave.com/forums/topic/twdm-pon/
      Could you please kindly suggest me a Twdm POn osd file same my document
      twdm

      And how can i show this diagram by using optisystem 7
      diagram
      hope to receive your comment, thanks a lot your reading

    • #34729
      aasif bashir dar
      Participant

      hi nguyan hai ha,

      i am attaching the all sample pon—realted .osd files from my optisytem 14 ….but i think it will only help you if you are using optisystem 14…because optisytem is not forward compatible.

    • #34794
      Nguyen Hai Ha
      Participant

      Hi aasif, i still only designed Gpon before, thank a lot your attach files, do you have similar TWDM system like my attached file?Thanks

    • #34893
      Aabid Baba
      Participant

      Hello Nguyen,
      Why do you need a TWDM ?
      Regards

    • #34917
      aasif bashir dar
      Participant

      hi all,
      i think she needs to NGPON2 archtecture ,which makes the useof optical time division wavelength multiplexing..
      i suggest nguyan hai ha to go these links;

      1.https://optiwave.com/resources/applications-resources/optical-system-time-division-multiplexing-tdm/

      2.https://optiwave.com/resources/applications-resources/optical-system-optical-time-domain-multiplexing-otdm-design/

      3.https://optiwave.com/forums/topic/otdm/

      hope these might help

      with regards

    • #34942
      Nguyen Hai Ha
      Participant

      Hi aabid and aasif, thank for your comment as i said i try to do analyse Performance on single channel transmission of ng pon2 with some impairment: antenuation, Cd, non linear,…base on my attached file, in my attached file, they use 40gb upstream( 4 pair wavelenght 10gbps) and 10gb downstreem. But i still want to build a TWDM 10gbps upstream(4×2.5gbps) and 2.5 gbps downstream, in addition, i dont know how to use optisystem to show diagram same figure 27 in my attached file.

    • #34981
      aasif bashir dar
      Participant

      hi nguyan hai ha,

      are you taking about the attached figure;;

      with regards

      • #35024
        Atul Sharma
        Participant

        Hi . Greetings!
        I guess she is talking about the same but let her respond first.

    • #35099
      Nguyen Hai Ha
      Participant

      Hi aasif, that’s right, how can i use Optisystem to show the same dỉagram?

    • #35139
      Ranjeet Kumar
      Participant

      Hi hi nguyan hai ha,
      I am uploading different networks design of wdm system with different advanced modulation formats, advanced modulation formats like CSRZ, DRZ and MDRRZ are spectrially efficient and require less power and also used could transmit upto even longer distance.
      You can change different parameters like laser power, fiber loops, global data rate , channel spacing and other parameters to see variations in BER and Q-factor and design as per your choice.
      Hope this will help you.
      We know the latest version is hybrid of TDM and WDM system .
      so, i think this to share .

    • #35140
      Ranjeet Kumar
      Participant

      Hi hi nguyan hai ha,
      Due to problem in internet connectivity, i am unable to upload the files being discussed above.
      I will try to upload the files one by one or simultaneously.

      Hope this will help you.

    • #35150
      aasif bashir dar
      Participant

      hi,

      yes you can definitelly optain such graph in optisytem.. kindly follow the steps below;;;

      1.first fix the CW laser power to 3dBm.
      2.provide the sweep to length of the fiber and enter the values for the length as 0,20,40,60,80,100 (this means no. of iterations is 6).
      3. after simulation of your design,,,open the report of simulation…obtain the opti2Dgraph of BER vs the your sweepsi.e length….this will be the graph at txpower 3dBm….
      4. Export this graph (in pairwise ) in the text form,,,name it say BER@3dbm..

      now change the tx.power and repeat the steps 2-4…

      now you can use these text files, to form the graph in excel…

      hope this helps

      with regards

    • #35153
      umer syed
      Participant

      hi all , i think…
      there is better explaination than the aasif sir has provided you….i appreciate his efforts
      as i think that you are new to optisytem….i think that you fall in below problems…

      how to provide sweeps????

      Lesson 4: Parameter Sweeps — BER x Input Power


      and how to plot graph in optisytem or opti 2Dgraph????

      plotting graph

      solution are provided in the linkss

      now i think that your problem solved

      with regards

    • #35159
      Nguyen Hai Ha
      Participant

      Hi aasif, unmer and others kind guys, im so appreciate with your help, it very closed my deadline thesis, but i still only have a litle experience with GPON design. With diagram i know how to show I wil try your guide and let you know soon. But Do you have a TWDM osd same my attach file with 4×2.5gbps upstream and 2.5 upstream and can run by optisystem 7? Sorry for my foolish.

    • #35173
      Ranjeet Kumar
      Participant

      Hi hi nguyan hai ha,
      I am uploading osd file of TWDM PON for your use.
      Try to simulate whether you could able able to simulate in optisystem 7.
      Let me know after i will try to help you.

      Seeking your response.

    • #35175
      Nguyen Hai Ha
      Participant

      Hi Ranjeet, thank for your effort to help me. I try open by OS 7 but it was error: Fail to load document from storage, i will use higher version to open this. Thank a lot

    • #35609
      Nguyen Hai Ha
      Participant

      Hi Ranjeet, althouhg i use OS 13, it still error: Fail to load document from storage, did your osd design by OS 14?

    • #35711
      Ranjeet Kumar
      Participant

      Hi Nguyen Hai Ha,
      Yeah, i am using optisystem version 14.
      Okk , i will try to improve the system and will re upload the osd file using optisystem version 13.
      I don’t think it has to do with the types of version, but i will see.

    • #35824
      Nguyen Hai Ha
      Participant

      Hi ranjeet, i can open file by OS 14, thank for your effort to help me, pls feedback me on my fb

    • #35825
      Nguyen Hai Ha
      Participant

      Hi ranjeet , wwhen i run the simulation your osd, it had error and stop working, can you help me?

    • #36422
      Rajguru M. Mohan
      Participant

      Hi hi nguyan hai ha,
      We couldn’t design hybrid TDM – WDM PON using optisystem 7.0.
      You should upgrade your optisystem software version either 13.0 or 14.0.
      Because previous version lacks some components.
      In NGPON2 You can also use OFDM-WDM PON, Why are you to use hybrid TDM – WDM PON ?
      Seeking your response.

    • #36887
      Rajguru M. Mohan
      Participant

      Hi Nguyen Hai Ha,
      These links are really important for NGPON2.
      First we should have basic understanding of NGPON2 technologies and its standard parametrs.
      So, I would suggest you to please refer to following links:
      http://www.alticelabs.com/content/WP-Evolution-of-FTTH-Networks-for-NG-PON2.pdf
      http://www.ieee1904.org/events/2015_02_joint_session/js_1502_fsan.pdf
      http://www1.huawei.com/en/about-huawei/publications/communicate/hw-201329.htm

      You should refer to various paper of IEEE standards about NGPON2.
      Hope this will help you.

    • #38486
      Nguyen Hai Ha
      Participant

      Hi all
      thanks a lot your support, i tried to perform with attached file but the BER value not good follow ITU-T, could you guys please check it

    • #38507
      Rajguru M. Mohan
      Participant
    • #41146
      windy herlin
      Participant

      Hy all
      I already make the TWDM PON simulation for my final project
      pardon me, but can you help me to check if this network is wrong or not
      hope to receive your comment

    • #50961
      Rupam Chakraborty
      Participant

      Can someone please explain me this figure.
      this the result that I am getting for NGPON2 system just before splitter

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