DSP with WDM - Optiwave

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This topic has 3 replies, 2 voices, and was last updated 4 years, 9 months ago by Ahmad Atieh.

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- July 22, 2020 at 5:42 pm #67713
  
  Lama
  Participant
  
  Hi … I have a question whether DSP is helping me to offset the effect of XPM, FWM in the optical system DP-QPSK and how can I do that
  lmoh21481@gmail.com
- July 30, 2020 at 3:00 pm #67764
  
  Ahmad Atieh
  Moderator
  
  Hello,
  The DSP component can be used to compensate for nonlinearities as well as dispersion. There are many example in OptiSystem Example Library shows how to use the DSP component.
  Regards,
  Ahmad
- July 31, 2020 at 2:15 am #67775
  
  Lama
  Participant
  
  Hi … Thank you … Please reference the wavelength within the fiber and the wavelength of each channel How can their values be determined in the WDM system … Is the reference wavelength the same for the fiber or the channel at the DEMUX output
- August 2, 2020 at 10:24 am #67790
  
  Ahmad Atieh
  Moderator
  
  Hello Lama,
  Typically, the reference wavelength in the fiber is used to reference the fiber physical parameter specs. So, if the reference wavelength is 1550nm and you chose constant attenuation, this means that the attenuation for all wavelength is the same and it equals to 0.2dB/km at 1550 nm. Now, if the you choose the attenuation from a file, then you may have the wavelength dependent attenuation. The same applies for all other fiber specs.
  I hope this answers your question.
  Regards,
  Ahmad
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