Home Forums GRATING mux/demux construction

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    • #69337
      Jonathan Carrion

      I have built a mux with circulators, couplers and FBG filters, in which I have had difficulty understanding the analysis of the inputs and outputs of the filter and circulators. If you can help me with a feedback if the construction is correct or what could be an optimal way to do it without the need for couplers. thank you very much.

    • #69347
      Ahmad Atieh

      Dear Jonathan,
      I think the issues you are encountering due to not using delay elements in the circulator path for the signal coming from the combined signals of the FBG. Also, due to the width of the FBG related to the wavelength separation of the lasers.

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