[Dr. Hamza M. R. Al-KhafajiSpectator]

Dear Feng Gang,
I think the problem in this sample is the FBG connections. You can drop an email to me at: dr.hamza.alkhafaji@gmail.com

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Salwa,
I can’t find your simulation file to check it. To represent the KS codes in spectral domain, you need to define the channels of KS codes in en/decoders. This can be done through converting each 1 in code sequence into a specific wavelength and setting 0.8 nm spectral width between each spectra.

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Hager,
Use B2B transmission first in your simulation. After getting good results for all channels, then you can add the fiber link. You can drop an email to me at: dr.hamza.alkhafaji@gmail.com

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Hager,
You need to set the bandwidth in WDM Demux to 0.8 nm spectral width between each spectra with rectangular filtering. In PIN PD the downsampling should be centered at max power.The second WDM Demux should have the same transmitted channels and settings.

[Dr. Hamza M. R. Al-KhafajiSpectator]

Please count me in!
Thanks

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Hager,
By converting each 1 in code sequence into a specific wavelength and setting 0.8 nm spectral width between each spectra.

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Damian Marek,
Good day..

Can you please modify the design without phase modulation ? Why you used “user defined bit sequence” ? and what is the setting of these “user defined bit sequence” components?, thank you.

Dr. Hamza

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Damian Marek,
Good day..

Can you please modify the design without phase modulation ? Why you used “user defined bit sequence” ? and what is the setting of these “user defined bit sequence” components?, thank you.

Dr. Hamza

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Damian Marek,
Have a nice day..

I hope you reply me faster.. In the attached file, when bit 1 is transmitted light is sent to encoder while bit 0 is encoded by the complementary of the encoder. How to implement the red colour part of this system ? any idea about how to make switching for the data bits ?, thank you.

Dr. Hamza

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Damian Marek,
Have a nice day..

I hope you reply me faster.. In the attached file, when bit 1 is transmitted light is sent to encoder while bit 0 is encoded by the complementary of the encoder. How to implement the red colour part of this system ? any idea about how to make switching for the data bits ?, thank you.

Dr. Hamza

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Hager, you need to represent the binary MD codes in spectral domain ..

[Dr. Hamza M. R. Al-KhafajiSpectator]

No answer !!

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Siva, what you say it in your first post is correct. NRZ is better than RZ for 10 Gbps rate or below. RZ is superior at higher bit rates. Replacing DCF by Ideal dispersion compensation FBG is not the solution. Normally, DCF compensation technique is better than FBG.

[Dr. Hamza M. R. Al-KhafajiSpectator]

Hi Hager, you need to change the bit rate to 622 Mbps and define the channels of MD codes for all WDM MUX/DEMUX.