Home Forums GENERAL How to set parameter for Bidirectional Optical fiber in Optisystem Simulation

How to set parameter for Bidirectional Optical fiber in Optisystem Simulation

Profile Photo
(joined May 2018)
Participant

Hi everyone !

Could everyone tell me how to set parameters for Bidirectional Optical Fiber, Splitter Bidirectional, and Circulator Bidirectional in Optisystem Simulation, I have designed 1 simulation as an attachment using ( Optical Fiber, Splitter, Circulator) single then simulation work, but if using Bidirectional Optical Fiber, Splitter Bidirectional, and Circulator Bidirectional then it is not working.

Thanks !

Attachments:

Responses (8):

  • #49594
    Profile Photo
    NGUYEN KHAC BINH
    Participant

    Hi everyone !

    Could everyone tell me how to set parameters for Bidirectional Optical Fiber, Splitter Bidirectional, and Circulator Bidirectional in Optisystem Simulation, I have designed 1 simulation as an attachment using ( Optical Fiber, Splitter, Circulator) single then simulation work, but if using Bidirectional Optical Fiber, Splitter Bidirectional, and Circulator Bidirectional then it is not working.

    Thanks !

    Attachments:
  • #49611

    Hi NGUYEN,
    When you use bidirectional fiber, make sure to connect input signals to its two input terminals. if there is only one input signal, you can connect
    the second one to NULL. Another point you should take care of it is the delay. if the calculation of the back-directional is dependent on the forward one or vice-versa, also please make sure to add delay (optical or electrical depending on your design) to allow the program to wait for the calculation from one point to another.

    Hope that clears up your concerns.

    good luck
    Mohamed Abouseif

  • #49632
    Profile Photo
    NGUYEN KHAC BINH
    Participant

    Hi Mohamed Abouseif

    Thank you for your replying, if using Bidirectional type then the signal after passing through Splitter Bidirectional disappears

    BINH

  • #49640

    Hi Nguyen again,
    can you try two splitter/combiner? and see if the problem is solved or not.

    thanks
    Mohamed

  • #49641
    Profile Photo
    NGUYEN KHAC BINH
    Participant

    Hi Mohamed Abouseif

    Thank you for your enthusiastic help.
    I used two splitter/combiner, but the return signal does not pass the Optical Delay, do you know why?

    BINH

    Attachments:
  • #50021
    Waseem Shbair
    Participant

    Same problem in my design.
    Is there any solution(s)?

    Attachments:
  • #50029
    Profile Photo
    Ahmad Atieh
    Participant

    Hello Waseem/All,
    Mohamed is no longer with Optiwave.
    There is no need to place a delay component in the signal path if you transmitting two different signals in the bidirectional fiber component. For the example in the attached image, a signal is transmitted from east/west (down link) and a different modulated signal from west to east (uplink) in the bidirectional fiber.
    regards,

    Ahmad

    +1
  • #50031
    Waseem Shbair
    Participant

    But why when running without delay, no signal goes through Up or Down stream?

  • #50033
    Profile Photo
    Ahmad Atieh
    Participant

    This is related to OptiSystem scheduler that controls the calculation.

    Could you please let me know which OptiSystem version do you use? please communicate on ahmad.atieh@optiwave.com

Login You must be logged in to reply to this topic.