Home Forums KNOWLEDGE Bidirectional Components [Optical System]

Bidirectional Components [Optical System]

(joined March 2014)
Participant

Question:

I am trying to use bidirectional fibers to design a nonlinear optical loop mirror, but I have run into some problems. The outputs of the bidirectional fiber are always zero no matter what I change the inputs to. How can I fix this?

Responses (2):

  • #10099
    Damian Marek
    Participant

    Question:

    I am trying to use bidirectional fibers to design a nonlinear optical loop mirror, but I have run into some problems. The outputs of the bidirectional fiber are always zero no matter what I change the inputs to. How can I fix this?

  • #10100
    Damian Marek
    Participant

    Answer:

    The most likely error in your design is the incorrect use of delays and initial delay. Every component in OptiSystem requires all of its inputs to have a signal. If the simulation is run and a component is missing an input signal, it will output an empty signal with no values. To perform the simulation correctly either the Optical Delay component or Initial delay option must be used.

    Take a look at the example attached, “Nonlinear Optical Loop Mirror.osd”, in this example Optical Delays are used. The delays function by first outputting an Optical Null signal and then on subsequent iterations acting as a transparent interconnect. The number of iterations can be changed in the Signals tab of the global parameters box. A higher number of iterations will allow the simulation to converge to the correct results.

    If you would like a further explanation of both the Optical Delay component and Initial delay option, please follow the link below to a tutorial.

    http://optiwave.com/resources/applications-resources/lesson-5-bidirectional-simulation-working-with-multiple-iterations/

  • #40713
    Profile Photo
    NISHA N P
    Participant

    Sir,
    Can u please resend the attached “Nonlinear-optical loop mirror.osd” file again because i am not able to open it.When i am tring to open it it is showing ‘Failed to download from storage’.

    Regards

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