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Performance Investigation of 40 GB/s DWDM over Free Space Optical Communication System Using RZ Modulation Format

(joined March 2014)
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Abstract—We successfully demonstrate 40 GB/s 8 channels’ Dense Wavelength Division Multiplexing (DWDM) over free space optical (FSO) communication system. Each channel is transmitting 5 GB/s data rate in downstream separated by 0.8nm (100GHz) channel spacing with 1.8GHz filter bandwidth. DWDM over FSO communication system is very effective in providing high data rate transmission with very low bit error rate (BER). The maximum reach of designed system is 4000m without any compensation scheme. The simulation work reports minimum BER for Return-to-Zero (RZ) modulation format at different channels 1, 4, and 8 are found to be 2.32.

Thanks to Sushank Chaudhary of InterNetworks Research Lab for submitting this application note on FSO Communications using OptiSystem.

Publication Reference: Performance Investigation of 40 GB/s DWDM over Free Space Optical Communication System Using RZ Modulation Format

Responses (13):

  • #40956
    Damian Marek
    Moderator

    Abstract—We successfully demonstrate 40 GB/s 8 channels’ Dense Wavelength Division Multiplexing (DWDM) over free space optical (FSO) communication system. Each channel is transmitting 5 GB/s data rate in downstream separated by 0.8nm (100GHz) channel spacing with 1.8GHz filter bandwidth. DWDM over FSO communication system is very effective in providing high data rate transmission with very low bit error rate (BER). The maximum reach of designed system is 4000m without any compensation scheme. The simulation work reports minimum BER for Return-to-Zero (RZ) modulation format at different channels 1, 4, and 8 are found to be 2.32.

    Thanks to Sushank Chaudhary of InterNetworks Research Lab for submitting this application note on FSO Communications using OptiSystem.

    Publication Reference: Performance Investigation of 40 GB/s DWDM over Free Space Optical Communication System Using RZ Modulation Format

  • #41267
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    Naazira Badar
    Participant

    Hi Damian..

    Good job. !

    Cheers!
    Naazira Badar

  • #41294
    sahil kakalia
    Participant

    sir can u tell me how to make a 80 channel DWDM system.

  • #41333
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    gaganpreet Kaur
    Participant

    Hi Damian i have done work on 40 Gbps RZ DWDM systems… but i wanted to know what is differenece between optisystem realization of free space comm DWDM system and DWDM system we implement using a fixed length tranmission fiber, amplifier and detector

  • #41344
    sahil kakalia
    Participant

    hii gaganpreet kaur, u have worked on dwdm system. can u send me the .osd files i.e optisystem files of the dwdm system u have implemented.

  • #41347
    sahil kakalia
    Participant

    hii Damian i am working on a DWDM system and not able to get the exact results that are mentioned in the paper. please help. I am attaching the osd file as well ass that paper on which i am working.

  • #41425
    sahil kakalia
    Participant

    Hii damian the osd file u attached does not open in the latest version of optisystem. Please help

  • #41426
    sahil kakalia
    Participant

    Hii damian Can u tell me how to design an 80 channel Dwdm system. It would be great help if u send me the osd file of 80 channel dwdm system

    • This reply was modified 1 year, 10 months ago by  sahil kakalia.
  • #41454
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    gaganpreet Kaur
    Participant

    Hi sahil i have just seen the paper u r following for implementation and feel its quiet easy to implement in optisystem. it has sown the complete design rather. i suggest u try it and optimize the parameters still if u r unable to find the problem share it with me ….i am quiet sure i will be able to solve it

  • #41455
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    gaganpreet Kaur
    Participant

    actually the system i have designed may not be of much help to u coz i am not using EDFAs in my design

  • #41456
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    gaganpreet Kaur
    Participant

    Choose WDM transmitter.. open its properties box set its channel to 80 then choose starting frequency and the channel spacing. Set the input power as well. in next tab set RZ or NRZ format and bit rate too . then u choose WDM Mux set its channels to 80 and in next tab individual u define te channel frequencies. the output of the this Mux is given to the transmission fiber. u may set its dispersion characteristics if needed
    .. try this

  • #41457
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    gaganpreet Kaur
    Participant

    i have designed 100 channel DWDM system on similar lines

  • #41459
    sahil kakalia
    Participant

    Hii gagan preet kaur. Thanks for reply. Can you send me the osd files of 100 channel . It would be very helpful

  • #43274
    anu chauhan
    Participant

    hi everyone i am pursuing my researh on MITIGATION OF MOBILE OFDM RECEIVER USING ICI SELF-CANCELLATION SCHEME IN OPTICAL COMMUNICATION USING OPTISYSTEM i have tried and reproduced the results for 32*20Gbps WDM channel for different bandwidths like 100,200,300,400Hz. If i need to make a new system for 32*40Gbps my results are not up to the mark can anyone help me the steps i must follow to get the results?

    Attachments:
    1. Project11.pdf

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