Home Forums SYSTEM why use loop control in circuit

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    • #19966
      gherbi mohamed
      Participant

      hi,
      i find many examples of RoF system and i dont’n understand why we use the loop control and what’s mean the number of loop and if i dont’t use this component my simulation is true or false?.
      please help me.
      best regards

    • #19974
      Ravil
      Participant

      Hi gherbi mohamed,

      Can you, please, upload the examples you are mentioning? Or, in case if you can’t (due to copyrights regulations) just give a references to the sources? It will help other with visualizing your question and better help you with it.

    • #19984
      Anamika Basnotra
      Participant

      the loop is used in the system if u are using the components like amplifiers in ur setup
      eg. if u r using an amplifier and u are using a loop control with it, and keep the no. of loops as 3. that means u r amplifing ur signal 3 times

    • #19992
      Ashu verma
      Participant

      Yes I am agree with Anamika.You can take small distance of fiber and put amplifier to mitigate the effect of attenuation .And run no of loops,every time loop run it amplifies signal again n again,

    • #19993
      Ashu verma
      Participant

      Sry i wanted to put this answer to another post

    • #20013
      gherbi mohamed
      Participant

      hi,
      thanks for you.
      this a link which use a loop control but if i need to design an optical system with dispersion conpensation ( with loop control) without use an amplifier, its true or false?
      best regards

      Dispersion Compensation Schemes – A System Perspective

    • #20023
      Anamika Basnotra
      Participant

      hi, Gherbi Mohamed
      you can try removing amplifier from the loop
      and check the result, bt may be results wont be displayed or the o/p may be worse.
      its always preferable to use amplifier with DCF.

    • #20032
      gherbi mohamed
      Participant

      thank’s anamika

    • #20274
      Ajay Vyas
      Participant

      Hi Gherbi
      You are working on RoF. Have you idea about the feedback concept of RoF link. How we can develop the predistorter for it

    • #20284
      Ashu verma
      Participant

      Hi Ajay vyas, why you want to use feedback?Can you please attach on which you are working???

    • #20292
      Heitor Galvao
      Participant

      The use of the loop control is to control the amount of laps on a circuit involving a fiber and a aplificador for example, it is easier to control the dispersion and prevents unnecessary usage of many amplifiers for many large distances.

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