- This topic has 10 replies, 6 voices, and was last updated 9 years, 6 months ago by Heitor Galvao.
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April 20, 2015 at 3:22 pm #19966gherbi mohamedParticipant
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 -
April 20, 2015 at 10:00 pm #19974RavilParticipant
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.
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April 21, 2015 at 6:52 am #19984Anamika BasnotraParticipant
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 -
April 21, 2015 at 9:49 am #19992Ashu vermaParticipant
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,
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April 21, 2015 at 9:59 am #19993Ashu vermaParticipant
Sry i wanted to put this answer to another post
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April 21, 2015 at 2:17 pm #20013gherbi mohamedParticipant
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 -
April 21, 2015 at 4:32 pm #20023Anamika BasnotraParticipant
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. -
April 22, 2015 at 3:37 am #20032gherbi mohamedParticipant
thank’s anamika
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May 2, 2015 at 2:53 am #20274Ajay VyasParticipant
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 -
May 2, 2015 at 9:59 am #20284Ashu vermaParticipant
Hi Ajay vyas, why you want to use feedback?Can you please attach on which you are working???
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May 2, 2015 at 1:42 pm #20292Heitor GalvaoParticipant
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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