- This topic has 13 replies, 5 voices, and was last updated 10 years ago by
Ashu verma.
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AuthorPosts
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April 14, 2015 at 7:10 am #19659
Subhajit Chatterjee
ParticipantPlease can someone do this in optisystem? please send me the file in subhajitc8@gmail.com,it is urgent..
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April 15, 2015 at 1:45 pm #19773
gherbi mohamed
Participanthello,
i find many examples fot this topic in the optiwave website, you can look in. i give you an example of dispersion compensation attached.
good luck -
April 16, 2015 at 12:44 am #19784
Abhishek Shrama
ParticipantHi shubajit,you cam make this by your on by simply use two optisystem samples
Go to samples>WDM system>8 channel WDM system
For dispersion compensation you can go to
samples>dispersion compensation,PRE POS and SYmmetric
use these two samples and will able to make your system -
April 17, 2015 at 12:32 am #19849
Subhajit Chatterjee
Participant#Abhishek where can I find this link samples-wdm system..
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April 17, 2015 at 12:41 am #19851
Abhishek Shrama
ParticipantHere’s the link!
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April 17, 2015 at 12:44 am #19853
Abhishek Shrama
ParticipantIf u are searching for offline samples –
Goto C:\program file/optisystem software\optisystem \ samples \ dispersion compensation\ pre post symmetric -
April 17, 2015 at 2:01 am #19854
Subhajit Chatterjee
Participantthnx
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April 17, 2015 at 9:14 am #19863
Ashu verma
ParticipantSir i have to calculate four wave mixing.how to calculate it
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April 17, 2015 at 11:34 pm #19884
Ravil
ParticipantHi Sam Sung,
For your question, I would recommend the book of G. Agrawal “Nonlinear Fiber Optics”. You can find the equations for four wave mixing in chapter 10 of this book.
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April 18, 2015 at 11:48 am #19900
Ashu verma
ParticipantHi Ravil
My concern is,if i am transmitting two signals from different channels,then i get two more side channels with low poer than signal power,this is FWM ,am i right????
So how to calculate the FWM power from OSA.I have tried it with markers ,but could not find any accurate values.
Is there any method to measure this?
I have to plot a graph b/q input power and FWM power.
Guys help me please -
April 20, 2015 at 3:01 am #19935
Abhishek Shrama
ParticipantHi,Samsung you can check FWM validation from optisystem samples.I am also agree with ravil .
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April 20, 2015 at 10:14 am #19948
Ashu verma
ParticipantThank you Abhishek
i have checked the samples and found there is only example of FWM .Why they did not used any data?
In example only FWM signals present,But my question is how to calculate exact value of FWM power,because i want to draw a graph between input power and FWM power.Is there any visualizer to do this measurement.Please help me over this -
April 20, 2015 at 9:53 pm #19973
Ravil
ParticipantHi Sam Sung,
You are right about you concern. In general, there is a combination of three channels in FWM which gives parasitic response in other frequencies. However, two channels (as you are explaining) can mix together and cause the same effect as well which is called degenerate FWM. You should be able to calculate your FWM effects knowing FWM power and your channel frequencies. Can you, please, attach the graphs you are working with, so I can better understand your approach and help you?
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April 21, 2015 at 10:10 am #19995
Ashu verma
ParticipantHi Ravil,these are my approx values.I just wanted to know ,how to calculate exact values of new generated values.I want to plot graph b/w Pin and FWM.
Pin FWM power
-10 -80
0 -76
10 -70
15 -66
20 -56And please tell me how to calculate graphs in OpTISYSTEM.Is there any programme in matlab to do this???
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