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Fiber Bragg Gratings Reflection Co-efficient

  1. Mar 30, 2015 #1
    I am studying fiber bragg gratings for a project. I read the couple-mode theory and came across a plot of the reflection coefficient v/s wavelength used which had a global maxima at the Bragg wavelength. The plot was drawn for a constant value of the coupling constant κ. I don't understand this assumption since the coupling constant was found to be dependent on the wavelength used in the same manuscript. So a plot with the wavelength as the independent variable, keeping the coupling co-efficient constant doesn't make sense.
  2. jcsd
  3. Apr 4, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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