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White Gaussian Noise – Optiwave https://optiwave.com/forums/topic/white-gaussian-noise/feed Wed, 05 Nov 2025 16:43:35 +0000 https://bbpress.org/?v=2.6.14 en-US https://optiwave.com/forums/topic/white-gaussian-noise/#post-39351 <![CDATA[White Gaussian Noise]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39351 Tue, 24 May 2016 12:48:08 +0000 Nik DJENH Hi

I’m using OptiSystem7, in order to simulate an optical communication channel, I would like to add a white Gaussian noise to an optical signal. I have to add a noise to an optical signal, however, I wrote a Matlab code to generate a white Gaussian noise, but it was an electrical signal. The white Gaussian noise I created was an electrical signal whereas I have to convert it into optical before adding it to the optical signal.

My trouble is then, how can I convert an electrical White Gaussian Noise to an optical noise ?

Thanks

]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39387 <![CDATA[Reply To: White Gaussian Noise]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39387 Thu, 26 May 2016 04:52:35 +0000 Aabid Baba Hello Nik,
Yeah! There are no opto-electrical converters present in the optisystem at the moment. However, you are doing it correctly by writing a code in the Matlab. All you need to do is to change the type of port i mean here you want it in optical domain so you need to set it to optical. Actually in OptiSystem, you need to open the Matlab component and go to the Outputs. The type of the output should be set to either electrical or optical depending on what it is functioning as.I hope this will help you.
Regards

]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39523 <![CDATA[Reply To: White Gaussian Noise]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39523 Sat, 04 Jun 2016 17:51:41 +0000 Nik DJENH Hi aabid baba
Thanks for your response.
I wrote a Matlab code for generating a white Gaussian noise, but it still doesn’t work. I don’t know if there is a mistake in Matlab co-simulation syntax using OptiSystem or if it’s my Gaussian noise code which doesn’t work.
Please can you verify me this code ?

Regards

]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39525 <![CDATA[Reply To: White Gaussian Noise]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-39525 Sun, 05 Jun 2016 16:14:21 +0000 Hamza Ali Abbas Khan Hi
I agree with Mr Aabid Baba becuase there are no opto-electrical converters present in the optisystem at the moment. However, you need to do is to change the type of port i mean here you want it in optical domain so you need to set it to optical. Actually in OptiSystem, you need to open the Matlab component and go to the Outputs as mentioned by Mr Aabid. The type of the output should be set to either electrical or optical depending on what it is functioning as.
I hope you find it useful.
One more thing i want to mention is that your code may be correct but selection of type of port may be one that is causing the issue. I hope you will look for this and implement it again.
Thanks
Regards

]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-41002 <![CDATA[Reply To: White Gaussian Noise]]> https://optiwave.com/forums/topic/white-gaussian-noise/#post-41002 Thu, 21 Jul 2016 11:41:46 +0000 Jamal Nik DJENH
Were you able to solve your problem this way ?

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