Search Results for 'wdm'

[Muhammad UsmanParticipant]

Sir,

Max. OSNR is recorded through WDM analyzer connected before photo detector. And Exrtinction Ratio (dB) is collected from Bit Error Rate Analyzer’s report sectio

Regards
M. Usman

[Muhammad Usman]

When I simulate a DWDM PON architecture by increasing length from 50 to 160 km with 10 km increments. I receive following values,
Min BER Penalty Extinction Ratio Max OSNR (dB)
0 -7.00487 48.7404
0 -7.00505 48.7404
0 -7.0054 48.7404
0 -7.00604 48.7404
0 -7.00718 48.5072
0 -7.00919 48.5072
0 -7.01268 48.5072
6.165E-272 -7.01866 48.5072
3.896E-202 -7.02886 48.5072
4.744E-131 -7.04616 48.5072
1.505E-73 -7.07542 48.5072
6.742E-37 -7.12495 48.5072

I want to link the results but I am unable to understand why there is a “-ve” sign with Penalty Extinction Ratio. And how do I relate BER, PER and OSNR values. As with increasing length PER and OSNR doesn’t change much while BER is increasing. Further there is a large Penalty Extinction Ratio value for smaller channel length and small Penalty Extinction Ratio for larger lengths. How do I interpret this? Please help

[Jimmy Sanchez Herrera]

I want to simulate UDWDM with 10 GHz channel spacing, but it doesn’t work. It only works with 100 GHz. What would be the problem?
Thank you

[Canisius BORIS]

Hi!
I’m doing a simulation of an optical transmission system SDH/WDM. so, I’m using SDH module which is a simulink module. So I need to recover the issue of the simulink’s simulation as an input of my system in optisystem.
how can i achieve it?
Notice that i’m using Optisystem 7 (which don’t have simulink component) and matlab R2018b

[Hana mou]

Hi everyone.

I’m new to optical communication and to OptiSystem .I’m working on a project of GPON based WDM using OptiSystem which is illustrated in the photo below.
As I understood it’s most likely to be a WDM system rather than being a TDM since it transmits different frequencies over transmission line!
This network WDM -GPON Works in type modulation NRZ
And I want to work in modulation Manchester what should I do?
I mentioned that I’m new and have no background experiences in this area, I hope you help me
Thanks in advance, I appreciate your attention.

[Palash Rai]

Respected sir,

I am analyzing the effect of Four Wave Mixing in 2 channel WDM(wavelength Division Multiplexing) radio over fiber system But i am having some problem in getting the correct output as mentioned in research paper. Instead of getting 4 signals at receiver(as per the formula m=(n^2/2)*(n-1)) i just get only 2.can you please help me to rectify my problem?.My project simulation profile is attached with this query.

[Palash Rai]

sir ,
i am doing my project research on FWM (four wave mixing effect )in WDM. I am facing some sort of problem in generating the correct result outputs as mentioned. can u help me to rectify my problem?

regards

[Shivam Wadhwa]

HI, I want to analyze the effect of different line coding technique on WDM . For that I use the AMI line coding technique but I am not getting the output with the circuit I have made .I request u to kindly help me to rectify this issue.

The Optisystem file is attached with this mail for your reference.

[divya khanureParticipant]

i was not able to find anything to click on the left top for Dual Port WDM Analyser…
how to extract result data from Dual Port WDM Analyser.
please help

[Ahmad AtiehModerator]

Hello Divya,
you may use the Python Component in OptiSystem and include your ML code in it. You may find references on how to use the component and signal structure in Example Library of OptiSystem located at:
C:\Users\xxxxxxx\Documents\OptiSystem 16.0 Samples\PythonScripts
Also, you may find some examples on COADM in OptiSystem example at:
C:\Users\xxxxxxx\Documents\OptiSystem 16.0 Samples\WDM systems\
Regards,
Ahmad

[Ahmad AtiehModerator]

Hello Divya,
you may find the COADM 4×4.osd file at the following location.
C:\Users\USER NAME\Documents\OptiSystem 16.0 Samples\WDM systems.
Regards,
Ahmad

[Ahmad AtiehModerator]

Hello Pooja,
You may use the “WDM Analyzer” component to measure SNR or you can build your own tool using OSA, filters and power meters.
Regards,
Ahmad

[Neha Luthra]

ON USING FREQUENCY 193.1thz(1552nm) THE CIRCUIT GIVES THE RESULT BUT WHEN I SWITCH TO 1550nm why q factor becomes completely zero.please help.

[juba haqParticipant]

i need optisystem project file of wdm to develop all 8 channel using mux and get again demodulated 8channel by using dmux . anyone can help me ,please !

[Ahmad AtiehModerator]

Hello Juba,
Your question is not clear. However, OptiSystem Example Library has many examples on WDM MUX and DWMUX. These examples can be found at
C:\Users\xxxxxxx\Documents\OptiSystem 15.2 Samples\Component sample files\WDM Multiplexers Library
Regards,
Ahmad